SD card - Knowledge

2169: 2180: 3846: 4046: 4026: 12543: 3247: 4201: 2945: 2058: 1406: 3233: 4897: 5993: 1435: 6957: 2050: 538: 6359:, in which frequently modified blocks are mapped to different portions of memory at different times, and some wear-leveling algorithms are designed for the access patterns typical of FAT12, FAT16 or FAT32. In addition, the preformatted file system may use a cluster size that matches the erase region of the physical memory on the card; reformatting may change the cluster size and make writes less efficient. The SD Association provides freely downloadable SD Formatter software to overcome these problems for Windows and Mac OS X. 563: 2066: 4092: 2937: 5981: 3586:(SPI) and one-bit SD bus types. Low-Speed SDIO cards are allowed to also support the four-bit SD bus; Full-Speed SDIO cards are required to support the four-bit SD bus. To use an SDIO card as a "combo card" (for both memory and I/O), the host device must first select four-bit SD bus operation. Two other unique features of Low-Speed SDIO are a maximum clock rate of 400 kHz for all communications, and the use of Pin 8 as "interrupt" to try to initiate dialogue with the host device. 3507: 1372:(LVDS) on a second row of pins. Each lane is capable of transferring up to 156 MB/s. In full-duplex mode, one lane is used for Transmit while the other is used for Receive. In half-duplex mode both lanes are used for the same direction of data transfer allowing a double data rate at the same clock speed. In addition to enabling higher data rates, the UHS-II interface allows for lower interface power consumption, lower I/O voltage and lower electromagnetic interference (EMI). 3259: 7048: 621: 4552: 2495: 2475: 2452: 2422: 2376: 586: 2689: 2673: 2366: 2337: 2657: 2293: 2593: 2554: 2442: 2412: 3077: 4426: 3221: 6860: 6719: 6068: 4751: 4446: 4308: 3403: 2980: 2840: 963: 4415: 3567:

example, an HP SDIO camera usually does not work with PDAs that do not list it as an accessory. Inserting an SDIO card into any SD slot causes no physical damage nor disruption to the host device, but users may be frustrated that the SDIO card does not function fully when inserted into a seemingly compatible slot. (USB and Bluetooth devices exhibit comparable compatibility issues, although to a lesser extent thanks to standardized

1734: 6054:. Until determining the card's capabilities, the host device should not use a clock speed faster than 400 kHz. SD cards other than SDIO (see below) have a "Default Speed" clock rate of 25 MHz. The host device is not required to use the maximum clock speed that the card supports. It may operate at less than the maximum clock speed to conserve power. Between commands, the host device can stop the clock entirely. 3500: 1417:) or 312 MB/s (half-duplex) using an additional row of pins for LVDS signalling (a total of 17 pins for full-size and 16 pins for micro-size cards). While first implementations in compact system cameras were seen three years after specification (2014), it took many more years until UHS-II was implemented on a regular basis. At the beginning of 2024, almost 90 DSLR and mirrorless cameras support UHS-II. 3272: 1127: 856: 849: 5965: 6655: 69: 2726:). Basic cards transfer data at up to six times (6×) the CD-ROM speed; that is, 900 kbit/s or 7.37 Mbit/s. The 2.0 specification defines speeds up to 200×, but is not as specific as Speed Classes are on how to measure speed. Manufacturers may report best-case speeds and may report the card's fastest read speed, which is typically faster than the write speed. Some vendors, including 2705: 2402: 3595: 1060: 60: 842: 1695: 1740: 1656: 1596: 1175: 529:(MB) cards became available three months later. The first 64 MB cards were offered for sale for 200 USD. SD was envisioned as a single memory card format for several kinds of electronic devices, that could also function as an expansion slot for adding new capabilities for a device. The first 256 MB and 512 MB SD cards were announced in 2001. 1218: 863: 3292:– Several companies produce SD cards with built-in Wi-Fi transceivers supporting static security (WEP 40/104/128, WPA-PSK and WPA2-PSK). The card lets any digital camera with an SD slot transmit captured images over a wireless network, or store the images on the card's memory until it is in range of a wireless network. Examples include: 3085:

after supplying the old password, specify a new password or disable locking. Without the password (typically, in the case that the user forgets the password), the host device can command the card to erase all the data on the card for future re-use (except card data under DRM), but there is no way to gain access to the existing data.

3378:– SanDisk has used various colors of plastic or adhesive label, including a "gaming" line in translucent plastic colors that indicated the card's capacity. In 2006, the first 256MB microSD to used color-coded cards by Kingmax, which later other brands (i.e., SanDisk, Kioxia,...) had been implemented to this day. 3966:

SD cards are not the most economical solution in devices that need only a small amount of non-volatile memory, such as station presets in small radios. They may also not present the best choice for applications that require higher storage capacities or speeds as provided by other flash card standards

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operation at 50 MHz (DDR50) is also specified in Version 3.01, and is mandatory for microSDHC and microSDXC cards labeled as UHS-I. In this mode, four bits are transferred when the clock signal rises and another four bits when it falls, transferring an entire byte on each full clock cycle, hence

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Version 3.01 also introduced the Ultra High Speed (UHS) bus for both SDHC and SDXC cards, with interface speeds from 50 MB/s to 104 MB/s for four-bit UHS-I bus. (this number has since been exceeded with SanDisk proprietary technology for 170 MB/s read, which is not proprietary anymore,

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Class 10 asserts that the card supports 10 MB/s as a minimum non-fragmented sequential write speed and uses a High Speed bus mode. The host device can read a card's speed class and warn the user if the card reports a speed class that falls below an application's minimum need. By comparison, the

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In February 2019, the SD Association announced microSD Express. The microSD Express cards offer PCI Express and NVMe interfaces, as the June 2018 SD Express release did, alongside the legacy microSD interface for continued backwards compatibility. The SDA also released visual marks to denote microSD

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There is a proprietary UHS-I extension, called DDR200, originally created by SanDisk that increases transfer speed further to 170 MB/s. Unlike UHS-II, it does not use additional pins. It achieves this by using the 208 MHz frequency of the standard SDR104 mode, but using DDR transfers. This

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The newer families of SD card improve card speed by increasing the bus rate (the frequency of the clock signal that strobes information into and out of the card). Whatever the bus rate, the card can signal to the host that it is "busy" until a read or a write operation is complete. Compliance with a

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SDHC host devices are required to accept older SD cards. However, older host devices do not recognize SDHC or SDXC memory cards, although some devices can do so through a firmware upgrade. Older Windows operating systems released before Windows 7 require patches or service packs to support access to

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SDXC cards are allowed to use all 22 bits of the C_SIZE field. An SDHC card that did so (reported C_SIZE > 65,375 to indicate a capacity of over 32 GB) would violate the specification. A host device that relied on C_SIZE rather than the specification to determine the card's maximum capacity

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A host device can lock an SD card using a password of up to 16 bytes, typically supplied by the user. A locked card interacts normally with the host device except that it rejects commands to read and write data. A locked card can be unlocked only by providing the same password. The host device can,

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Most full-size SD cards have a "mechanical write protect switch" allowing the user to advise the host computer that the user wants the device to be treated as read-only. This does not protect the data on the card if the host is compromised: "It is the responsibility of the host to protect the card.

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form-factor memory cards were introduced in 2004 by SanDisk at CeBIT and originally called T-Flash, and later TransFlash, which was abbreviated to "T-Flash" or "TF". T-Flash was renamed microSD in 2005 when it was adopted by the SDA. TransFlash and microSD cards are functionally identical, allowing

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In the definition of SDHC cards in version 2.0, the C_SIZE portion of the CSD is 22 bits and it indicates the memory size in multiples of 512 KB (the C_SIZE_MULT field is removed and READ_BL_LEN is no longer used to compute capacity). Two bits that were formerly reserved now identify the card

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At power-up or card insertion, the voltage on pin 1 selects either the Serial Peripheral Interface (SPI) bus or the SD bus. The SD bus starts in one-bit mode, but the host device may issue a command to switch to the four-bit mode, if the SD card supports it. For various card types, support for the

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Cards may support various combinations of the following bus types and transfer modes. The SPI bus mode and one-bit SD bus mode are mandatory for all SD families, as explained in the next section. Once the host device and the SD card negotiate a bus interface mode, the usage of the numbered pins is

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On the left side, there may be a write-protection notch. If the notch is omitted, the card can be read and written. If the card is notched, it is read-only. If the card has a notch and a sliding tab which covers the notch, the user can slide the tab upward (toward the contacts) to declare the card

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The Secure Digital Ultra Capacity (SDUC) format, described in the SD 7.0 specification, and announced in June 2018, supports cards up to 128 TB and offers speeds up to 985 MB/s, regardless of form factor, either micro or full size, or interface type including UHS-I, UHS-II, UHS-III or SD

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Speed class considered irrelevant: our benchmarking reveals that the "speed class" marking on SD cards is not necessarily indicative of application performance; although the class rating is meant for sequential performance, we find several cases in which higher-grade SD cards performed worse than

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list a maximum of 149 mW (45 mA) during transfer. Toshiba lists 264–330 mW (80–100 mA). Standby current is much lower, less than 0.2 mA for one 2006 microSD card. If there is data transfer for significant periods, battery life may be reduced noticeably; for reference, the

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Most consumer products that take an SD card expect that it is partitioned and formatted in this way. Universal support for FAT12, FAT16, FAT16B and FAT32 allows the use of SDSC and SDHC cards on most host computers with a compatible SD reader, to present the user with the familiar method of named

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devices use SD cards designed for access only by the phone manufacturer or mobile provider. An SD card inserted into the phone underneath the battery compartment becomes locked "to the phone with an automatically generated key" so that "the SD card cannot be read by another phone, device, or PC".

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The position of the write protect switch is unknown to the internal circuitry of the card." Some host devices do not support write protection, which is an optional feature of the SD specification, and drivers and devices that do obey a read-only indication may give the user a way to override it.

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Later versions state (at Section 4.3.2) that a 2 GB SDSC card shall set its READ_BL_LEN (and WRITE_BL_LEN) to indicate 1,024 bytes, so that the above computation correctly reports the card's capacity, but that, for consistency, the host device shall not request (by CMD16) block lengths over

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The SDIO and SD interfaces are mechanically and electrically identical. Host devices built for SDIO cards generally accept SD memory cards without I/O functions. However, the reverse is not true, because host devices need suitable drivers and applications to support the card's I/O functions. For

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storage access protocol. The Express bus can be implemented by SDHC, SDXC and SDUC cards. For legacy application use, SD Express cards must also support High-Speed bus and UHS-I bus. The Express bus re-uses the pin layout of UHS-II cards and reserves the space for additional two pins that may be

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A malfunctioning SD card can be repaired using specialized equipment, as long as the middle part, containing the flash storage, is not physically damaged. The controller can in this way be circumvented. This might be harder or even impossible in the case of monolithic card, where the controller

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The SD card specification defines three physical sizes. The SD and SDHC families are available in all three sizes, but the SDXC and SDUC families are not available in the mini size, and the SDIO family is not available in the micro size. Smaller cards are usable in larger slots through use of a

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In September 2006, SanDisk announced the 4 GB miniSDHC. Like the SD and SDHC, the miniSDHC card has the same form factor as the older miniSD card but the HC card requires HC support built into the host device. Devices that support miniSDHC work with miniSD and miniSDHC, but devices without

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interface to memory cards, thus separating the operating system from the details of the underlying SD interface. However, embedded systems (such as portable music players) usually gain direct access to SD cards and thus need complete programming information. Desktop card readers are themselves

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tools for FAT file systems may be used on such cards. The resulting consolidation of files may provide a marginal improvement in the time required to read or write the file, but not an improvement comparable to defragmentation of hard drives, where storing a file in multiple fragments requires

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for reading and writing. Class A1 requires a minimum of 1,500 reading and 500 writing operations per second using 4 kbytes blocks, while class A2 requires 4,000 and 2,000 IOPS. A2 class cards require host driver support as they use command queuing and write caching to achieve their higher

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Cards that comply with UHS show Roman numerals 'I', 'II' or 'III' next to the SD card logo, and report this capability to the host device. Use of UHS-I requires that the host device command the card to drop from 3.3-volt to 1.8-volt operation over the I/O interface pins and select the four-bit

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defines standard speed classes for SDHC/SDXC cards indicating minimum performance (minimum serial data writing speed). Both read and write speeds must exceed the specified value. The specification defines these classes in terms of performance curves that translate into the following minimum

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Variations in 4k small block performance saw a difference of approximately 300-fold between the fastest and slowest cards. Distressingly, many of the tested cards were mediocre to poor on that metric, which may explain why running updates on Linux running off SD cards can take a very long

6031:(MMC) interface. SD cards dropped support for some of the commands in the MMC protocol, but added commands related to copy protection. By using only commands supported by both standards until determining the type of card inserted, a host device can accommodate both SD and MMC cards. 6009:

one-bit interface, where the host device provides a clock signal that strobes single bits in and out of the SD card. The host device thereby sends 48-bit commands and receives responses. The card can signal that a response will be delayed, but the host device can abort the dialogue.

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SD/SDHC/SDXC memory cards have a "Protected Area" on the card for the SD standard's security function. Neither standard formatters nor the SD Association formatter will erase it. The SD Association suggests that devices or software which use the SD security function may format it.

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By the time the version 2.0 (SDHC) specification was completed in June 2006, vendors had already devised 2 GB and 4 GB SD cards, either as specified in Version 1.01, or by creatively reading Version 1.00. The resulting cards do not work correctly in some host devices.

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form factor. The SDA adopted the miniSD card in 2003 as a small-form-factor extension to the SD card standard. While the new cards were designed for mobile phones, they were usually packaged with a miniSD adapter that provided compatibility with a standard SD memory card slot.

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embedded systems; their manufacturers have usually paid the SDA for complete access to the SD specifications. Many notebook computers now include SD card readers not based on USB; device drivers for these essentially gain direct access to the SD card, as do embedded systems.

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Version 1.01 let an SDSC card use a 4-bit field to indicate 1,024 or 2,048 bytes per block instead. Doing so enabled cards with 2 GB and 4 GB capacity, such as the Transcend 4 GB SD card, the Memorette 4 GB SD card and the Hoco 4 GB microSD card.

8262: 8093: 688:(also known as Rebel T2i) Digital SLR camera, a USB card reader from Panasonic, and an integrated SDXC card reader from JMicron. The earliest laptops to integrate SDXC card readers relied on a USB 2.0 bus, which does not have the bandwidth to support SDXC at full speed. 7869: 1190:

The Secure Digital eXtended Capacity (SDXC) format, announced in January 2009 and defined in version 3.01 of the SD specification, supports cards up to 2 TB, compared to a limit of 32 GB for SDHC cards in the SD 2.0 specification. SDXC adopts Microsoft's

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Version 9.1 of the SD specification, introduced in October 2023, defines new SD Express speed classes. The graphical symbols use a stylized 'E' followed by a number designating the minimum read/write speed. The specified classes are E150, E300, E450 and E600.

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Panasonic MicroP2 cards shipped in March 2013 and were the first UHS-II compliant products on market; initial offer includes a 32 GB SDHC card and a 64 GB SDXC card. Later that year, Lexar released the first 256 GB SDXC card, based on 20 nm

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and free software drivers provided access to SD cards not using DRM. Subsequent to the release of most open-source drivers, the SDA provided a simplified version of the specification under a less restrictive license helping reduce some incompatibility issues.

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Version 6.0, released in February 2017, added two new data rates to the standard. FD312 provides 312 MB/s while FD624 doubles that. Both are full-duplex. The physical interface and pin-layout are the same as with UHS-II, retaining backward compatibility.

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distributions did not have exFAT support for legal reasons, though in Linux kernel 5.4 Microsoft open-sourced the spec and allowed the inclusion of an exFAT driver. Users of older kernels or BSD can manually install third-party implementations of exFAT (as a

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rating with two possible grades: class 1 for minimum write performance of at least 10 MB/s ('U1' symbol featuring number 1 inside 'U') and class 3 for minimum write performance of 30 MB/s ('U3' symbol featuring 3 inside 'U'), targeted at recording

447:(SDA), a non-profit organization to create and promote SD Card standards. As of 2023, the SDA has approximately 1,000 member companies. It uses several SD-3C-owned trademarked logos to enforce compliance with its specifications and denote compatibility. 3856:

Due to their compact size, Secure Digital cards are used in many consumer electronic devices, and have become a widespread means of storing several gigabytes of data in a small size. Devices in which the user may remove and replace cards often, such as

706:(128 GB) began shipping SDXC cards rated at Speed Class 10. Pretec offered cards from 8 GB to 128 GB rated at Speed Class 16. In September 2011, SanDisk released a 64 GB microSDXC card. Kingmax released a comparable product in 2011. 4013:(2013) have an SD card compartment located externally and accessible by hand, while it is located under the battery cover on other devices. More recent mobile phones use a pin-hole ejection system for the tray which houses both the memory card and 3562:

SDIO cards support most of the memory commands of SD cards. SDIO cards can be structured as eight logical cards, although currently, the typical way that an SDIO card uses this capability is to structure itself as one I/O card and one memory card.

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mean better small-file performance), including those from major manufacturers, were over 100 times slower. In 2014, a blogger measured a 300-fold performance difference on small writes; this time, the best card in this category was a class 4 card.

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announced plans to produce 64 GB SDXC cards. On March 6, Pretec introduced the first SDXC card, a 32 GB card with a read/write speed of 400 Mbit/s. But only early in 2010 did compatible host devices come onto the market, including

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name, this time not using any of the DRM capabilities of the SD card. In 2011, SanDisk offered various collections of 1000 songs on a single slotMusic card for about $ 40, now restricted to compatible devices and without the ability to copy the

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additional physical and relatively slow, movement of a drive head. Moreover, defragmentation performs writes to the SD card that count against the card's rated lifespan. The write endurance of the physical memory is discussed in the article on

525:, United States, then had 30 member companies and product manufacturers that made interoperable memory cards and devices. Early samples of the SD card became available in the first quarter of 2000, and production quantities of 32 and 64 8443: 10085: 8639: 8122: 3514:

A SDIO (Secure Digital Input Output) card is an extension of the SD specification to cover I/O functions. SDIO cards are only fully functional in host devices designed to support their input-output functions (typically PDAs like the

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SDHC cards are physically and electrically identical to standard-capacity SD cards (SDSC). The major compatibility issues between SDHC and SDSC cards are the redefinition of the Card-Specific Data (CSD) register in version 2.0 (see

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Uses extra pins plus some reassigned pins. This is the same protocol as the one-bit SD bus mode which uses one command and four data lines for faster data transfer. All SD cards support this mode. UHS-I and UHS-II require this bus

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The Secure Digital High Capacity (SDHC) format, announced in January 2006 and defined in version 2.0 of the SD specification, supports cards with capacities up to 32 GB. The SDHC trademark is licensed to ensure compatibility.

10803: 8266: 8101: 2765:: The flash controller may need to overwrite more data than requested. This has to do with performing read-modify-write operations on write blocks, freeing up (the much larger) erase blocks, while moving data around to achieve 7865: 440:(MMCs). SDs have become an industry standard. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property (IP) rights associated with SD memory cards and SD host-and-ancillary products. 1082:

Most standard size SD cards are 2.1 mm (0.083 inches) thick, with microSD versions being 1.0 mm (0.039 inches) thick, compared to 1.4 mm (0.055 inches) for MMCs. The SD specification defines a card called

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In applications that require sustained write throughput, such as video recording, the device might not perform satisfactorily if the SD card's class rating falls below a particular speed. For example, a high-definition

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Specified in SD version 3.01. Supports a clock frequency of 100 MHz (a quadrupling of the original "Default Speed"), which in four-bit transfer mode could transfer 50 MB/s (SDR50). UHS-I cards declared as

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The speed class rating does not totally characterize card performance. Different cards of the same class may vary considerably while meeting class specifications. A card's speed depends on many factors, including:

10184: 2775:: where there is not sufficient space for a file to be recorded in a contiguous region, it is split into non-contiguous fragments. This does not cause rotational or head-movement delays as with electromechanical 8468: 4032:

Pro 64 GB microSDXC original (left) and counterfeit (right): The counterfeit claims to have 64 GB in capacity, but only 8 GB (Class 4 speed) are usable: When trying to write more than 8 GB,

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In February 2014, SanDisk introduced the first 128 GB microSDXC card, which was followed by a 200 GB microSDXC card in March 2015. September 2014 saw SanDisk announce the first 512 GB SDXC card.

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SD card speed is customarily rated by its sequential read or write speed. The sequential performance aspect is the most relevant for storing and retrieving large files (relative to block sizes internal to the

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All SD cards let the host device determine how much information the card can hold, and the specification of each SD family gives the host device a guarantee of the maximum capacity a compliant card reports.

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In 2008, the SDA specified Embedded SD, "leverag well-known SD standards" to enable non-removable SD-style devices on printed circuit boards. However this standard was not adopted by the market while the

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The switch is a sliding tab that covers a notch in the card. The miniSD and microSD formats do not directly support a write protection notch, but they can be inserted into full-size adapters which do.

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Except for the change of file system, SDXC cards are mostly backward compatible with SDHC readers, and many SDHC host devices can use SDXC cards if they are first reformatted to the FAT32 file system.

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Under a disclaimers agreement, the simplified specification released by the SDA in 2006 – as opposed to that of SD cards – was later extended to the physical layer, ASSD extensions, SDIO and SDIO

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The host device can command the SD card to become read-only (to reject subsequent commands to write information to it). There are both reversible and irreversible host commands that achieve this.

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memory and supports progressive 4K and 8K video with minimum sequential writing speeds of 6 – 90 MB/s. The graphical symbols use a stylized 'V' followed by a number designating write speed (

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in 2010. DeviceFidelity also adapted the In2Pay microSD to work with the Apple iPhone using the iCaisse, and pioneered the first NFC transactions and mobile payments on an Apple device in 2010.

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Version 4.0, introduced in June 2011, allows speeds of 156 MB/s to 312 MB/s over the four-lane (two differential lanes) UHS-II bus, which requires an additional row of physical pins.

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card format for professional video applications. The cards are essentially full-size SDHC or SDXC UHS-II cards, rated at UHS Speed Class U1. An adapter allows MicroP2 cards to work in current

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allow applications to run from microSD cards, creating possibilities for new usage models for SD cards in mobile computing markets, as well as clearing available internal storage space.

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family: 0 is SDSC; 1 is SDHC or SDXC; 2 and 3 are reserved. Because of these redefinitions, older host devices do not correctly identify SDHC or SDXC cards nor their correct capacity.

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is an Atari port for connecting external devices) is used nowadays. Software for an 8-bit Atari may be included on one SD card that may have less than 4–8 GB of disk size (2019).

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Modern UHS-II cards can consume up to 2.88 W, if the host device supports bus speed mode SDR104 or UHS-II. Minimum power consumption in the case of a UHS-II host is 720 mW.

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Many personal computers of all types, including tablets and mobile phones, use SD cards, either through built-in slots or through an active electronic adapter. Adapters exist for the

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Version 8.0 was announced on 19 May 2020, with support for two PCIe lanes with an additional row of contacts and PCIe 4.0 transfer rates, for a maximum bandwidth of 3,938 MB/s.

10398: 12171: 9461: 8609: 7811: 3334:, a microSD card with extra digital rights management features, which they intended as a medium for publishing content. SanDisk again announced pre-loaded cards in 2008, under the 2120:

and contained grades 0 (no symbol) and 1 ('U1' symbol). Manufacturers can also display standard speed class symbols (C2, C4, C6 and C10) alongside, or in place of UHS speed class.

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Capacities above 4 GB can only be achieved by following version 2.0 or later versions. In addition, capacities equal to 4 GB must also do so to guarantee compatibility.

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them. The latter approach leverages the fact that counterfeited cards let the user read back files, which then consist of easily compressible uniform data (for example, repeating

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on mobile devices, which allows for one of the highest levels of security in person-to-person voice communications. Such solutions are heavily used in intelligence and security.

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Commonly found on the market are mislabeled or counterfeit Secure Digital cards that report a fake capacity or run slower than labeled. Software tools exist to check and detect

3940:. The usage of a memory card also protects the mobile phone's non-replaceable internal storage from weardown from heavy applications such as excessive camera usage and portable 612:

specific support for miniSDHC work only with the older miniSD card. Since 2008, miniSD cards are no longer produced, due to market domination of the even smaller microSD cards.

12326: 10743: 9491: 8490: 8202: 10681: 9306: 8317: 10945: 7261: 4904:, SD, miniSD, microSD. This shows the evolution from the older MMC, on which SD is based. NOTE: This drawing does not show 8 new UHS-II contacts that were added in spec 4.0. 10206: 3616:

Older host devices generally do not support newer card formats, and even when they might support the bus interface used by the card, there are several factors that arise:

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from a USB interface, an SD card in a USB adapter can be the boot disk, provided it contains an operating system that supports USB access once the bootstrap is complete.

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devices, however, are some of the few that can perform the necessary low-level format operations on locked SD cards. It is therefore possible to use a device such as the

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extension has since then been used by Lexar for their 1066x series (160 MB/s), Kingston Canvas Go Plus (170 MB/s) and the MyMemory PRO SD card (180 MB/s).

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as Lexar has the 1066x running at 160 MB/s read and 120 MB/s write via UHS 1, and Kingston also has their Canvas Go! Plus, also running at 170 MB/s).

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The SD specification envisioned capacities and transfer rates exceeding those of MMC, and both of these functionalities have grown over time. For a comparison table, see

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accommodate SD cards as an auxiliary storage device using a built-in slot, or can accommodate SD cards by means of a USB adapter, SD cards cannot be used as the primary

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With early SD cards, a few card manufacturers specified the speed as a "times" ("×") rating, which compared the average speed of reading data to that of the original

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The storage density of memory cards increased significantly throughout the 2010s, allowing the earliest devices to offer support for the SD:XC standard, such as the

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ratings 2, 4 and 6 assert that the card supports the respective number of megabytes per second as a minimum sustained write speed for a card in a fragmented state.

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and accept older SD cards. For example, SDXC host devices accept all previous families of SD memory cards, and SDHC host devices also accept standard SD cards.

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read/write, or downward to declare it read-only. The diagram to the right shows an orange sliding write-protect tab in both the unlocked and locked positions.

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to the SD card until the card's capacity is reached, and copying them back. The files that were copied back can be tested either by comparing checksums (e.g.

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Full-size SD cards do not fit into the slimmer MMC slots, and other issues also affect the ability to use one format in a host device designed for the other.

7648: 11114: 10237: 8546: 12462: 12351: 9352: 9175: 7448: 7017:

project to claim "the first truly Open Source SD implementation, with no need to obtain an SDI license or sign NDAs to create SD drivers or applications."

1205:

Version 5.0 was announced in February 2016 at CP+ 2016, and added "Video Speed Class" ratings for UHS cards to handle higher resolution video formats like

1079:

Asymmetrical shape of the sides of the SD card prevents inserting it upside down (whereas an MMC goes in most of the way but makes no contact if inverted).

643:

In January 2009, the SDA announced the SDXC family, which supports cards up to 2 TB and speeds up to 300 MB/s. SDXC cards are formatted with the

11503: 10303: 9872: 9267: 12250: 8013: 7678: 4889:

The physical interface comprises 9 pins, except that the miniSD card adds two unconnected pins in the center and the microSD card omits one of the two V

2779:, but may decrease speed⁠—for instance, by requiring additional reads and computation to determine where on the card the file's next fragment is stored. 11365: 10019: 3305: 11435: 10601: 8181: 3301: 11886: 10967: 9206: 8364: 8343: 7760: 6355:

Reformatting an SD card with a different file system, or even with the same one, may make the card slower, or shorten its lifespan. Some cards use

3317: 1158:

Version 2.0 also introduces a high-speed bus mode for both SDSC and SDHC cards, which doubles the original Standard Speed clock to produce 25

11781: 11736: 9620: 7949: 12676: 11957: 11611: 8156: 5973: 2751:

with slow cards may take a noticeable time after taking a photograph before being ready for the next, while the camera writes the first picture.

11529: 10997: 10652: 10526: 10430: 8520: 6980:

for SD card licenses are imposed for manufacture and sale of memory cards and host adapters (US$ 1,000/year plus membership at US$ 1,500/year)

3313: 2041:

NOTE: If the card reader uses the DDR208 controller on the UHS 1 pins, the card reader will perform at 180 MB/s on applicable UHS 1 cards

9802: 2514:

is a newly defined standard from the SD Specification 5.1 and 6.0 which not only define sequential Writing Speeds but also mandates a minimum

11558: 11307: 11217: 10338: 9146: 9091: 754:

announced its Canvas series of microSD cards which were capable of capacities up to 512 GB, in three variations, Select, Go! and React.

8742: 10825: 10360: 9580: 8684: 7703: 2948:

Sony 64GB SF-M Tough Series UHS-II SDXC Memory Card is one of the few cards in the market without a sliding tab on the write protect notch.

2168: 11911: 10391: 9239: 7615: 6321:

is recommended if the card is for a consumer device. (FAT16B is also an option for 4 GB cards, but it requires the use of 64 KB

2179: 12686: 12162: 9453: 8601: 7983: 7800: 12194: 11410: 11389: 9054: 9033: 2734:, report their cards' write speed. When a card lists both a speed class and an "×" rating, the latter may be assumed a read speed only. 1262:(10.6.5 and later) have native support for exFAT. (Windows XP and Server 2003 can support exFAT via an optional update from Microsoft.) 12377: 11058: 10452: 11161: 7928: 7376: 4045: 499:

had released the year before. Toshiba hoped the SD card’s DRM would encourage music suppliers concerned about piracy to use SD cards.

12319: 12135: 12015: 11861: 11589: 10920: 10735: 10673: 9946: 9678: 9483: 8800: 8313: 8210: 7560: 7545: 7476: 6375: 4064:, and in some cases it is possible to repair these devices to remove the false capacity information and use its real storage limit. 3893:

The microSD card has helped propel the smartphone market by giving both manufacturers and consumers greater flexibility and freedom.

3113: 1278:

module) in order to be able to mount exFAT-formatted volumes. However, SDXC cards can be reformatted to use any file system (such as

9650: 9292: 6674:

The format of the Card-Specific Data (CSD) register changed between version 1 (SDSC) and version 2.0 (which defines SDHC and SDXC).

4221:

standard became the de facto standard for embedded systems. SanDisk provides such embedded memory components under the iNAND brand.

11079: 10941: 10644: 10271: 9747: 9711: 9003: 8859: 8818: 7426: 7326: 6309:

When reformatting an SD card with a capacity of at least 32 MB (65,536 logical sectors or more), but not more than 2 GB,

3200: 3178: 3135:, with the introduction of In2Pay and CredenSE products, later commercialized and certified for mobile contactless transactions by 12109: 8971: 8660: 7731: 6960:

Dismantled microSD to SD adapter showing the passive connection from the microSD card slot on the bottom to the SD pins on the top

12036: 11666: 6374:

During transfer it may be in the range of 66–330 mW (20–100 mA at a supply voltage of 3.3 V). Specifications from

4228:

integrate SDIO hardware which uses the faster proprietary four-bit SD bus mode, almost all modern microcontrollers at least have

1300:

The SD Association provides a formatting utility for Windows and Mac OS X that checks and formats SD, SDHC, SDXC and SDUC cards.

1104: 11332: 8291: 7523: 2096:

older "×" rating measured maximum speed under ideal conditions, and was vague as to whether this was read speed or write speed.

2081:

The SD Association defines three types of Speed Class ratings: the original Speed Class, UHS Speed Class and Video Speed Class.

2053:

32 GB SanDisk Ultra microSDHC card (with Speed Class 10, UHS-I, UHS Speed Class 1, and Application Performance Class 1 markings)

1090:

The card's electrical contacts are recessed beneath the surface of the card, protecting them from contact with a user's fingers.

1075:(MMC) standard, which continued to evolve, but in a different direction. Secure Digital changed the MMC design in several ways: 12504: 12302: 12229: 11716: 11024: 10106: 8072: 11637: 10886: 9377: 8713: 577:

either to operate in devices made for the other. An adapter allowed the use of microSD and TransFlash cards in SD card slots.

10623: 9513: 8840: 7891: 10616:"Simplified Specifications – SD Association, version 3.10, Part 1, Physical Layer, section 4.3.6" Write Protect Management"" 10496: 9974: 3559:. Many other SDIO devices have been proposed, but it is now more common for I/O devices to connect using the USB interface. 2714:

The "×" rating, which was used by some card manufacturers and made obsolete by speed classes, is a multiple of the standard

11140: 11080:"DeviceFidelity and SpringCard Launch moneto, the World's First Multi-Platform Mobile Wallet for iPhone and Android at CES" 9768: 9546: 8043: 6682:

In version 1 of the SD specification, capacities up to 2 GB are calculated by combining fields of the CSD as follows:

6023:

Prepare the card to receive a block to write to the flash memory, or read and reply with the contents of a specified block.

12091: 11998:. 1.0. SD Group, Matsushita Electric Industrial Co., Ltd. (MEI), SanDisk Corporation, Toshiba Corporation. February 2000. 11186: 7323:"Matsushita Electric, SanDisk and Toshiba Agree to Join Forces to Develop and Promote Next Generation Secure Memory Card" 4232:

units that can interface to an SD card operating in the slower one-bit SPI bus mode. If not, SPI can also be emulated by

3645:

The hardware interface of the card was changed starting with the version 2.0 (new high-speed bus clocks, redefinition of

11464: 10765: 10051: 8935:"949126 – A Secure Digital High Capacity (SDHC) card is not recognized on a Windows Vista Service Pack 1-based computer" 8340:"Panasonic's New Smaller, Faster, and Lower-Cost MicroP2 Cards Coming in April, Starting at $ 250 « No Film School" 7301: 4025: 3952:

of memory cards, users of existing mobile devices are able to expand their storage further and priceworthier with time.

3845: 2966:

Cards sold with content that must not be altered are permanently marked read-only by having a notch and no sliding tab.

773:

The Secure Digital Ultra Capacity (SDUC) format supports cards up to 128 TB and offers speeds up to 985 MB/s.

11936: 4882: 4049:

Images of genuine, questionable and counterfeit microSD (Secure Digital) cards before and after decapsulation. Details

1369: 10547: 8231: 6924: 6783: 6132: 4815: 4510: 4372: 3467: 3044: 2904: 1027: 12448: 12279: 8768: 7836: 7780: 7587: 6943: 6802: 6151: 4834: 4529: 4391: 3486: 3142:

Various implementations of smartSD cards have been done for payment applications and secured authentication. In 2012

3063: 2923: 1071:

The second-generation Secure Digital (SDSC or Secure Digital Standard Capacity) card was developed to improve on the

1046: 393:

Because of their small physical dimensions, SD cards became widely used in many consumer electronic devices, such as

12406: 11835: 10082:"Thunderclap: Exploring Vulnerabilities in Operating System IOMMU Protection via DMA from Untrustworthy Peripherals" 9402: 8942: 8913: 8884: 6896: 6755: 6104: 4787: 4482: 4344: 3439: 3016: 2876: 1087:

with a thickness of 1.4 mm, but they occur only rarely, as the SDA went on to define even smaller form factors.

999: 12254: 11756: 4862:. This bus type supports only a 3.3-volt interface. This is the only bus type that does not require a host license. 3388:

card with a digital display that provided a two-character label and showed the amount of unused memory on the card.

3207:

This was the first time regular mobile phones could be used to open doors without need for electronic access keys.

1313:), such as images and multimedia. Small data (such as file names, sizes and timestamps) falls under the much lower 11055:"Wells Fargo to Roll Out Mobile Payments Pilot; Visa Demonstrating Capability at CARTES 2010 | Business Wire" 7638: 4131:

use requires a separate SD host controller or an SD-to-CompactFlash converter. However, on computers that support

11106: 7096: 7041: 4855: 4287: 4229: 4006: 2799:). A study in 2012 found that, in this random-access use, some Class 2 cards achieved a write speed of 1.38 2123:

UHS memory cards work best with UHS host devices. The combination lets the user record HD resolution videos with

481: 12355: 11810: 10177:"New SD Express Specifications Introduce New Speed Classes and Next-Level Performance Features | SD Association" 9356: 9331: 9171: 6379:

capacity of smartphone batteries is typically around 6 Wh (Samsung Galaxy S2: 1650 mAh @ 3.7 V).

2519:

speeds. Without they are guaranteed to at least reach A1 speeds. As of Linux kernel 5.15, it fully supports A2.

1413:

Specified in version 4.0, further raises the data transfer rate to a theoretical maximum of 156 MB/s (full-

11715:[Detecting controller model and memory type of flash drive] (in Russian). usbdev.ru. 20 February 2013. 11495: 6903: 6881: 6762: 6740: 6111: 6089: 4794: 4772: 4489: 4467: 4351: 4329: 3446: 3424: 3023: 3001: 2883: 2861: 2248: 1266: 1006: 984: 6662:

SD version 1.00 assumed 512 bytes per block. This permitted SDSC cards up to 4,096 × 512 × 512 B = 1 GB.

4885:

interfaces to transfer commands and data. UHS-II cards include this interface in addition to the SD bus modes.

2127:

while performing other functions. It is also suitable for real-time broadcasts and capturing large HD videos.

12454: 12065: 9879: 9431: 8877:"934428 – Hotfix for Windows XP that adds support for SDHC cards that have a capacity of more than 4 GB" 8094:"Panasonic Introduces New 64 GB* and 48 GB* SDXC Memory Cards, Available Globally in February 2010" 7670: 2959:

When looking at the SD card from the top, the right side (the side with the beveled corner) must be notched.

2747:

may require a card of not less than Class 6, suffering dropouts or corrupted video if a slower card is used.

1100:

While MMC uses a single pin for data transfers, the SD card added a four-wire bus mode for higher data rates.

11691: 11353: 10026: 7024:, laptop computers and some desktop computers; many desktop computers do not have card slots, instead using 6050:

After determining that the SD card supports it, the host device can also command the SD card to switch to a

3282:

Vendors have sought to differentiate their products in the market through various vendor-specific features:

12681: 7373:"Matsushita Electric, SanDisk and Toshiba to Form SD Association to Promote Next Generation SD Memory Card" 4248: 732:

Samsung announced the world's first EVO Plus 256 GB microSDXC card in May 2016, and in September 2016

488:("data/bits per physical space"), i.e. a large quantity of data could be stored in a small physical space. 10453:"Application Performance Class: The new class of performance for applications on SD memory cards (SD 5.1)" 8177: 3642:

Use of an SDIO card requires the host device be designed for the input/output functions the card provides.

8465:"Samsung Electronics Introduces the EVO Plus 256 GB MicroSD Card, with the Highest Capacity in its Class" 6910: 6769: 6118: 4801: 4496: 4358: 4127:

through the onboard ATA controller, because none of the SD card variants support ATA signalling. Primary

3583: 3453: 3246: 3030: 2890: 1507: 1414: 1013: 11882: 8339: 7752: 3656:

UHS-II has physically more pins but is backwards compatible to UHS-I and non-UHS for both slot and card.

1221:

Secure Digital Ultra Capacity (SDUC) logo. The specification defines cards with a capacity of more than

796:. The five families are the original standard capacity (SDSC), high capacity (SDHC), extended capacity ( 12532: 12497: 11785: 9612: 9112: 7975: 7081: 3960: 1130:

Secure Digital High Capacity (SDHC) logo. The specification defines cards with a capacity of more than

38: 11964: 11615: 10597: 4061: 3659:

Some vendors produced SDSC cards above 1 GB before the SDA had standardized a method of doing so.

11525: 8632:"Western Digital Showcases New Super Speeds and Massive Capacities for M&E Workflows at NAB 2024" 8152: 3123:

Some of the earliest versions of microSD memory cards with secure elements were developed in 2009 by

2944: 1108: 1063:

Secure Digital Standard Capacity (SD) logo. The specification defines cards with a capacity of up to

648: 593:(used until the 1970s) that holds eight bytes using 64 cores. The card covers approximately 20 bits ( 514: 477: 11277: 10518: 10422: 9794: 6892: 6751: 6100: 6020:

Command the card to use a different voltage, different clock speed, or advanced electrical interface

4783: 4478: 4340: 3435: 3356:

port without needing a USB card reader. Other companies introduced comparable products, such as the

3012: 2872: 1178:

Secure Digital eXtended Capacity logo. The specification defines cards with a capacity of more than

995: 11614:[Fake SD-cards] (in German). Heise mobile – c't magazin für computertechnik. Archived from 7013:

had a fully free driver for it. Still, building a chip conforming to this specification caused the

6984: 6877: 6736: 6303: 6085: 4768: 4463: 4325: 3420: 3196: 3158: 3128: 2997: 2857: 2626: 2057: 1446:

lane to provide full-duplex 985 MB/s transfer speed. Supporting cards must also implement the

980: 11550: 11303: 10330: 9083: 7044:-bus interface mode is the only type that does not require a host license for accessing SD cards. 4200: 1405: 12644: 11255: 10998:"Datacard Group, DeviceFidelity and U.S. Bank Announce New Smart Card and Mobile Payment Program" 10863: 9795:"Toshiba's Exceria Pro SDHC cards claim 'world's fastest' write speeds of 240 MB per second" 8734: 8436:"SanDisk Premieres World's Highest Capacity SD Card for High Performance Video and Photo Capture" 7397: 7102: 6870: 6729: 6180:. Per the SD card specification, an SD card is formatted with MBR and the following file system: 6078: 4761: 4456: 4318: 4010: 3882: 3413: 2990: 2850: 1476:

Express memory cards to make matching the card and device easier for optimal device performance.

1458:, which increases the attack surface of the host dramatically in the face of malicious SD cards. 1353:

High-Speed Mode (25 MB/s) was introduced to support digital cameras with 1.10 spec version.

1275: 973: 418: 17: 10367: 9571: 8688: 7699: 2803:, while all cards tested of Class 6 or greater (and some of lower Classes; lower Class does not 472:

agreed to develop and market the Secure Digital (SD) memory card. The card was derived from the

11907: 9231: 7607: 7351: 3610: 2099:

The graphical symbol for the speed class has a number encircled with 'C' (C2, C4, C6 and C10).

736:(SanDisk) announced that a prototype of the first 1 TB SDXC card would be demonstrated at 633: 227: 10856:"Device Fidelity's Amitaabh Mohortra Speaks about their micro NFC device for almost any phone" 10573: 7588:

SanDisk Introduces The World's Smallest Removable Flash Card For Mobile Phones-The miniSD Card

6306:; newer technology to increase the storage capacity of a card provides worse write endurance. 2783:

In addition, speed may vary markedly between writing a large amount of data to a single file (

12490: 12202: 11414: 11385: 7574: 7029: 6322: 4185: 4054: 2727: 2253: 1388:(SDR104) also support a clock frequency of 208 MHz, which could transfer 104 MB/s. 522: 12276:"Sharp Linux PDA promotes the use of proprietary SD card, but more open MMC works just fine" 4896: 1409:

Back side of a Lexar UHS-II microSDHC card, showing the additional row of UHS-II connections

10796:"Visa and DeviceFidelity Collaborate to Accelerate Adoption of Mobile Contactless Payments" 7920: 7753:"CeBIT 2004: "Настраиваемся на волну будущего" | Статьи | Компьютерное Обозрение" 7372: 7014: 6988: 5937: 4174: 3990:. Active adapters also let SD cards be used in devices designed for other formats, such as 3519:, but occasionally laptops or mobile phones). These devices can use the SD slot to support 2078:

read-write performance levels on an empty card and suitability for different applications:

1455: 629: 590: 375: 12144: 12009: 9938: 9823: 8796: 7472: 6973: 6043:

electrical interface. On command, SDHC and SDXC cards can switch to 1.8 V operation.

5992: 1332:

higher speed rating is a guarantee that the card limits its use of the "busy" indication.

8: 11857: 11083: 10916: 9998: 9682: 9646: 6824:

might support such a card, but the card might fail in other SDHC-compatible host devices.

6325:, which are not widely supported.) FAT16B does not support cards above 4 GB at all. 5948: 4029: 3921: 2762: 2731: 1442:

The SD Express bus was released in June 2018 with SD specification 7.0. It uses a single

1434: 751: 379: 10263: 9739: 9703: 9172:"SD Association Announces SD 5.0 Specification: SD Cards For UHD and 360° Video Capture" 8995: 8856: 8815: 7727: 7422: 7322: 3928:, data stored on the memory card can be salvaged and accessed externally by the user as 2199:(1700 MBit/s reading) next to 256 GB SD card V30 (160 MBit/s reading) by 339:

Portable devices, such as digital cameras and mobile phones (including most smartphones)

12611: 12527: 12475: 12115: 10674:"Windows Phone 7's microSD mess: the full story (and how Nokia can help you out of it)" 8963: 6992: 6333: 6314: 6277: 6261: 6247: 6228: 6210: 6192: 6165: 4147: 3866: 3572: 3232: 2772: 2124: 746:

In January 2018, Integral Memory unveiled its 512 GB microSDXC card. In May 2018,

714: 537: 503: 402: 11662: 8656: 7173: 6956: 3080:

MicroSD-to-SD adapter (left), microSD-to-miniSD adapter (middle), microSD card (right)

12573: 12470: 11328: 9296: 8287: 7519: 6917: 6776: 6297:

can be used to repair a corrupted filing system and sometimes recover deleted files.

6177: 6125: 4808: 4503: 4365: 4120: 3460: 3199:

to launch campus access solutions for students using microSD with Secure Element and

3037: 2897: 2784: 2049: 1020: 758: 12299: 12223: 11712: 6371:

The power consumption of SD cards varies by its speed mode, manufacturer and model.

3624:

than the host device can handle (over 4 GB for SDHC, over 32 GB for SDXC).

11581: 7801:"SDXC SIGNALS NEW GENERATION OF REMOVABLE MEMORY WITH UP TO 2 TERABYTES OF STORAGE" 7033: 5952: 4291: 4181: 4076: 3185: 2139: 2069:

The front and back of the Sony 64 GB SF-M Tough Series UHS-II SDXC Memory Card

1502: 1389: 1368:

The higher speed rates of UHS-II and III are achieved by using two-lane 0.4 V

1283: 747: 562: 510:

format war. For this reason, the letter "D" is styled to resemble an optical disc.

10615: 8837: 8709: 6205:

Capacity of 32,680 to 65,535 logical sectors (between 16 MB and 32 MB):

4091: 4050: 3869:, tend to use full-sized cards. Devices in which small size is paramount, such as 3582:

family comprises Low-Speed and Full-Speed cards. Both types of SDIO cards support

2791:

records large photographs or videos) and writing a large number of small files (a

2065: 12650: 12306: 12095: 11743: 10488: 9140:"NEW SD ASSOCIATION VIDEO SPEED CLASS SUPPORTS 8K AND MULTI-FILE VIDEO RECORDING" 8863: 8844: 8822: 8804: 8491:"Western Digital Demonstrates Prototype of the World's First 1Terabyte SDXC Card" 8006:"Lenovo, HP, Dell Integrating SDXC Readers in New 32nm Intel "Arrandale" Laptops" 7787: 7594: 7262:"4 Features and Benefits of a Micro SD Transflash Memory Card – Steve's Digicams" 7194:

The necessary recording and playback speed class requirements may vary by device.

7060: 7021: 6977: 6298: 4859: 4225: 4143: 3917: 3850: 3162: 3147: 3143: 3132: 3088: 777: 733: 681: 660: 9542: 9381: 8906:"939772 – Some Secure Digital (SD) cards may not be recognized in Windows Vista" 7449:"Flash back: the history of the SD card, and why we think it deserves more love" 624:

Macro shot of a microSDXC memory card with eight gold plated electrical contacts

12627: 12601: 12578: 11361: 10238:"The microSD Express standard combines PCI Express speeds, microSD convenience" 9301: 7056: 6028: 5980: 5941: 5594: 5251: 4914: 4901: 4218: 3956: 3858: 3540: 3528: 3361: 3297: 3151: 3109: 2788: 2748: 2074: 1252:

file system, thereby limiting their use to a limited set of operating systems.

1072: 695:(64 GB), Panasonic (64 GB and 48 GB), and SanDisk (64 GB). 685: 518: 485: 473: 444: 437: 394: 387: 351: 244: 44: 12441: 12088: 11996:

SD Memory Card Specifications – PART 2 FILE SYSTEM SPECIFICATION – Version 1.0

11247: 11194: 10855: 10704:"Activating New Mobile Services and Business Models with smartSD Memory cards" 7497: 7401: 2936: 12670: 9084:"Canvas Go! Plus Class 10 SD Cards – UHS-I, U3, V30 – 64 GB–512 GB" 7150:

except where stated otherwise, in this article 1 TB = 1000 billion bytes

6356: 6242:

Capacity of less than 16,450,560 logical sectors (smaller than 7.8 GB):

4205: 4132: 3987: 3933: 3909: 3897: 3874: 2792: 2766: 2267: 2262: 2061:

32 GB Lexar 1000x microSDHC card (with UHS-II and UHS Speed Class 3 markings)

1255: 1234:

Express. The SD Express interface can also be used with SDHC and SDXC cards.

1206: 410: 11932: 10826:"In2Pay is the name of Visa and DeviceFidelity's money-grubbing iPhone case" 9403:"The Initial exFAT Driver Queued For Introduction With The Linux 5.4 Kernel" 8392:"SANDISK INTRODUCES WORLD'S HIGHEST CAPACITY microSDXC MEMORY CARD AT 128GB" 7866:"SanDisk and Sony to expand Memory Stick Pro and Memory Stick Micro formats" 4274:

Prerecorded microSDs have been used to commercialize music under the brands

3506: 3146:

partnered with DeviceFidelity to use microSD cards with secure elements for

1328:, which guarantees a minimum rate at which data can be written to the card. 12584: 12557: 10968:"DeviceFidelity's Good Vault provides identity and access solution for iOS" 10551: 9113:"Canvas Go! Plus Class 10 microSD Cards – V30, A2 – 64 GB–512 GB" 7086: 7052: 6289: 6256:

Capacity of at least 16,450,560 logical sectors (larger than 7.8 GB):

4256: 3991: 3968: 3929: 3870: 3568: 3309: 2232: 1310: 809: 492: 406: 383: 12275: 8547:"Integral Memory's new 512GB microSD card is the biggest microSD card yet" 8521:"Western Digital Launches SanDisk Ultra microSD Card with 400 GB Capacity" 7047: 3878: 3609:

Host devices that comply with newer versions of the specification provide

2494: 2474: 2451: 2421: 620: 521:(SDA) to promote SD cards. The SD Association, which was headquartered in 455: 414: 12568: 12513: 12402: 11831: 10942:"MicroSD Vendor Announces Taiwanese M-Payment Trial Using HTC NFC Phones" 10207:"Memory cards are about to get much faster with new microSD Express spec" 8934: 8905: 8876: 6169: 6006: 4551: 4233: 4155: 4068: 3999: 3945: 3913: 3258: 3170: 2375: 1499: 1447: 1393:

a 50 MB/s operation could be transferred using a 50 MHz clock.

1361:

The Ultra High Speed (UHS) bus is available on some SDHC and SDXC cards.

82: 31: 12436: 11218:"Arizona students first to trial mobile phones with NFC for door access" 6187:

Capacity of less than 32,680 logical sectors (smaller than 16 MB):

784:, which will make use of the SDUC format. It is set to release in 2025. 636:

mobile phones, to expand their available storage to several hundreds of

589:

This microSDHC card holds 8 billion bytes. Beneath it is a section of a

12633: 12595: 8068: 7091: 6884: in this section. Unsourced material may be challenged and removed. 6743: in this section. Unsourced material may be challenged and removed. 6092: in this section. Unsourced material may be challenged and removed. 5985: 5969: 4775: in this section. Unsourced material may be challenged and removed. 4470: in this section. Unsourced material may be challenged and removed. 4332: in this section. Unsourced material may be challenged and removed. 4162: 3941: 3321: 3192: 3093: 2864: in this section. Unsourced material may be challenged and removed. 2796: 2776: 2592: 2553: 2441: 2411: 987: in this section. Unsourced material may be challenged and removed. 722: 567: 12463:

Flash memory card: design, and List of cards and their characteristics

6820:

SDHC cards are restricted to reporting a capacity not over 32 GB.

6223:

Capacity of at least 65,536 logical sectors (larger than 32 MB):

585: 12563: 11806: 11737:"About VID PID Repairing Counterfeit Flash Drives – Steps To Succeed" 9484:"Ask Hackaday: How On Earth Can A 2004 MP3 Player Read An SDXC Card?" 9327: 8365:"Lexar Announces Industry's First 256 GB SDXC UHS-I Memory Card" 8097: 8039: 8009: 7979: 7000: 6969: 6839:≤ 65375 ≈2 GB ≤ Capacity ≤ ≈32 GB where for SDXC 65535 ≤ 6329: 6173: 4868:

Separate command and data channels and a proprietary transfer format.

4555:

Size comparison of families: SD (blue), miniSD (green), microSD (red)

4279: 4275: 4189: 4128: 4124: 4108: 4034: 3995: 3925: 3901: 3862: 3548: 3516: 3335: 3136: 3076: 2744: 2688: 2672: 2656: 2365: 2336: 2292: 2196: 2192: 737: 677: 664: 465: 429: 398: 8288:"microP2 Card | P2 Series | Broadcast and Professional AV" 7121:

except where indicated otherwise, 1 MB equals one million bytes

6859: 6718: 6067: 4750: 4445: 4307: 3402: 2979: 2839: 1294:), alleviating the restrictions associated with exFAT availability. 962: 12655: 12378:"PC-3000 Flash. How to recover data from a monolith (microSD card)" 12061: 9613:"SD Card Sequential, Medium & Small Block Performance Round-Up" 9427: 7643: 6318: 6294: 6265: 6251: 6232: 6218: 6200: 6017:

Determine the type, memory capacity and capabilities of the SD card

4425: 4237: 4170: 4165:

computers with installed SD card readers have been able to boot in

4151: 4067:

Detection of counterfeit cards usually involves copying files with

4014: 3983: 3937: 3552: 3532: 3220: 3120:

applets running on the internal secure element through the SD bus.

3117: 3097: 2759:

The frequency of soft errors that the card's controller must re-try

2113: 1454:

Hosts which implement version 7.0 of the spec allow SD Cards to do

781: 673: 637: 526: 11958:"SD Part 1, Physical Layer Simplified Specification, Version 4.10" 11687: 11465:"12 Advantages & Disadvantages of Using SD Card in Smartphone" 9873:"SD Part 1, Physical Layer Simplified Specification, Version 3.01" 7781:

SanDisk Introduces 4 GB miniSDHC Flash Card for Mobile Phones

4414: 3904:, memory cards in mobile devices provide location-independent and 3900:

depends on stable internet connection and sufficiently voluminous

3510:

Camera using the SDIO interface to connect to some HP iPAQ devices

3184:

microSD cards with Secure Elements have also been used for secure

1151:), and the fact that SDHC cards are shipped preformatted with the 12621: 12615: 12606: 12457: 8203:"First 64GB microSD Card Here; When Will Smartphones Support It?" 8126: 8065:"Toshiba's 64 GB SDXC card to finally go on sale (in Japan)" 6214: 6196: 4283: 4241: 4209: 4038: 3975: 3905: 3346: 3174: 3166: 2257: 2200: 762: 710: 692: 652: 549:, SanDisk Corporation introduced, announced and demonstrated the 469: 461: 433: 425: 11082:(Press release). DeviceFidelity. 10 January 2012. Archived from 7942: 7020:

The proprietary nature of the complete SD specification affects

6339:

file system, which sometimes requires appropriate drivers (e.g.

6287:

On such SD cards, standard utility programs such as Mac OS X's "

4180:

SD cards are increasing in usage and popularity among owners of

2138:

defines a set of requirements for UHS cards to match the modern

1209:. The new ratings define a minimal write speed of 90 MB/s. 12590: 12482: 12465: 12195:"A look into how SDHC will affect the future Nand Flash market" 8577:"Kingston Digital Announces New 'Canvas' Series of Flash Cards" 8314:"Panasonic introduces new microP2 SD-sized storage at NAB 2012" 7892:"SD Card, Memory Stick formats to reach 2 terabytes, but when?" 7009:

Again, most of the information had already been discovered and

6965: 6310: 6224: 4262: 4252: 4244: 4139: 4072: 3369: 3293: 3271: 2723: 2715: 1321: 743:

In August 2017, SanDisk launched a 400 GB microSDXC card.

12037:"SDXC memory cards promise 2 TB of storage, 300 MBps transfer" 9454:"Updated: How to upgrade your 3DS SD card, to 64GB and beyond" 7976:"Lack of Card Readers Holding Back SDXC Flash Memory Adoption" 6983:

Early versions of the SD specification were available under a

3499: 3173:, while others were part of innovative new direct-to-consumer 2704: 2401: 1733: 11640:(in German). Heise mobile – c't magazin für computertechnik. 11248:"Case Study: Mobile Access Pilot at Arizona State University" 10736:"DeviceFidelity launches low cost microSD-based NFC solution" 9026:"Lexar Professional 1066x microSDXC UHS-I Card SILVER Series" 7137: 7135: 7133: 7131: 7129: 7127: 7010: 6654: 6336: 6273: 6257: 6243: 6206: 6188: 5964: 4166: 4104: 3636: 3632: 3544: 3524: 3331: 3288: 1270: 1249: 1243: 1192: 1152: 1094: 944: 939: 934: 930: 703: 644: 546: 10331:"Speed Class Standards for Video Recording – SD Association" 10325: 10323: 9378:"Description of the exFAT file system driver update package" 3594: 2523:

Comparison of SD card Application Performance Class ratings

1739: 1126: 855: 848: 10107:"SDExpress Delivers New Gigabtye Speeds For SDMemory Cards" 6040: 4096: 4080: 3602: 3556: 3536: 2800: 2719: 2611: 2603: 2583: 2575: 2564: 2532: 2515: 2279: 1443: 1314: 1291: 1287: 1279: 1259: 1159: 669: 656: 496: 307: 68: 12431: 11187:"iPhone Voice Encryption from KoolSpan and DeviceFidelity" 11162:"DeviceFidelity launches new range of NFC microSD devices" 10020:"SD Association Doubles Bus Interface Speeds with UHS-III" 7124: 6701:

is 9 (for 512 bytes/sector) or 10 (for 1024 bytes/sector)

6005:

SD cards and host devices initially communicate through a

3601:/DAB+/FM/CD/MP3/WMA/USB/SDHC/podcast stereo recorder with 3108:

A smartSD memory card is a microSD card with an internal "

3100:

to reformat the card for subsequent use in other devices.

1694: 1345:

SD cards will read and write at speeds of 12.5 MB/s.

1059: 841: 780:(SanDisk) revealed the world's first 4 TB SD card at 59: 12639: 11746:, fixfakeflash.wordpress.com, retrieved November 16, 2010 10320: 9514:"High capacity microSD cards and Android – Gary explains" 7347: 7218: 7025: 6964:

Like most memory card formats, SD is covered by numerous

4900:

Official pin numbers for each card type (top to bottom):

3979: 3908:

storage expansion with much higher transfer rates and no

3520: 3353: 3276: 1655: 1365:

transfer mode, while UHS-II requires 0.4-volt operation.

517:(CES), the three companies announced the creation of the 507: 502:

The trademarked SD logo was originally developed for the

197:: 312 MB/s full-duplex, or 624 MB/s full-duplex 191:: 156 MB/s full-duplex, or 312 MB/s half-duplex 12002: 9769:"SD cards branded with an upper-case 'I' are faster, yo" 1595: 792:

Secure Digital includes five card families available in

12251:"WinXP SP3 cannot read 4GB SD card in multicard reader" 11990: 11988: 11986: 11984: 11025:"Bank of America to run NFC payments trial in New York" 9200:"Video Speed Class: The new capture protocol of SD 5.0" 8232:"Kingmax flaunts world's first 64 GB microSD card" 6636: 6013:

Through issuing various commands, the host device can:

1217: 1174: 862: 456:

1999–2005: Creation and introduction of smaller formats

12029: 10887:"DeviceFidelity adds NFC microSD support for iPhone 4" 4697:

The micro form factor is the smallest SD card format.

1317:, which can be the limiting factor in some use cases. 765:

unveiled their microSDXC cards of 1 TB capacity.

11629: 11281: 10519:"Application Performance Class – SD Association" 10264:"Bus Speed (Default Speed/High Speed/UHS/SD Express)" 9704:"Bus Speed (Default Speed/High Speed/UHS/SD Express)" 8257: 8255: 7774: 7219:

discussion about storage capacity and compatibilities

5933:

Direction is relative to card. I = Input, O = Output.

5845:

Interrupt Period (SDIO cards share pin via protocol)

1248:

SDXC and SDUC cards are normally formatted using the

663:

variant with the same 2 TB maximum as SDXC, and

11981: 9543:"SD Formatter 4.0 for SD/SDHC/SDXC – SD Association" 9353:"Apple released exFAT support in OS X 10.6.5 update" 8679: 8677: 7950:"Canon EOS Rebel T2i/550D Digital SLR Camera Review" 7913: 7032:

if necessary. These card readers present a standard

4169:

from SD storage devices, when properly formatted to

750:

launched a 512 GB microSDXC card. In June 2018

10392:"NEW SDXC AND SDHC MEMORY CARDS SUPPORT 4K2K VIDEO" 9569: 9194: 9192: 8410:"SanDisk introduces the first 200GB microSDXC card" 8153:"Lexar ships 128 GB Class 10 SDXC card; March 2011" 7581: 7233: 7231: 7229: 7227: 5988:

chips (top and middle), SD controller chip (bottom)

4657:

21.5 mm × 20 mm × 1.4 mm (

4173:file format and the default partition table set to 3955:Recent versions of major operating systems such as 3427:. Unsourced material may be challenged and removed. 3004:. Unsourced material may be challenged and removed. 691:In early 2010, commercial SDXC cards appeared from 12164:3.10.5 – Summary of Bus Speed Mode for UHS-II Card 11000:(Press release). Datacard Group. 14 January 2013. 9673: 9671: 9669: 9667: 9428:"exFAT for BSD and Linux systems from Google Code" 9261:"SD Express Cards with PCIe and NVMeTM Interfaces" 9134: 9132: 8651: 8649: 8252: 7728:"SanDisk Reveals Tiny New Memory Cards for Phones" 7423:"Three Giants to develop new "Secure Memory Card"" 3646: 1802:Bus speed of host and card combinations (in MB/s) 1148: 647:file system by default. SDXC was announced at the 506:, which was the unsuccessful Toshiba entry in the 9293:"Notable Changes in Windows Vista Service Pack 1" 8674: 8123:"Sandisk ships its highest capacity sd card ever" 7185:This speed is achievable using DDR208 controller. 6164:Most SD cards ship preformatted with one or more 6047:four-bit SD bus is either optional or mandatory. 4603:32 mm × 24 mm × 1.4 mm ( 4564:32 mm × 24 mm × 2.1 mm ( 285:15.0×11.0×1.0 mm (0.591×0.433×0.039 in) 274:21.5×20.0×1.4 mm (0.846×0.787×0.055 in) 263:32.0×24.0×2.1 mm (1.260×0.945×0.083 in) 12668: 11713:"Определение модели контроллера и памяти флешки" 11436:"Understanding Life Expectancy of Flash Storage" 9734: 9732: 9730: 9728: 9189: 8036:"Toshiba Sampling First SDXC Flash Memory Cards" 7883: 7224: 6669: 4103:Secure Digital memory cards can be used in Sony 2506: 11925: 10766:"DeviceFidelity rolls out microSD payment tool" 10709:. SD Association. November 2014. Archived from 10353: 10293:"SD Express Cards with Pie and Name Interfaces" 9664: 9570:Kim, H; Agrawal, N; Ungureanu, C (2012-01-30), 9205:. SD Association. February 2016. Archived from 9129: 8857:What's new in Firmware 2.41 Beta (for COWON D2) 8769:"Capacity (SD/SDHC/SDXC/SDUC) | SD Association" 8735:"Capacity (SD/SDHC/SDXC/SDUC) – SD Association" 8646: 8544: 7837:"Capacity (SD/SDHC/SDXC/SDUC) | SD Association" 7639:"T-Flash: aka 'Yet Another Memory Card Format'" 7563:. Bonnier Corporation – via Google Books. 7548:. Bonnier Corporation – via Google Books. 6386:Card requirements in different bus speed modes 6168:, where the first or only partition contains a 4705:15 mm × 11 mm × 1 mm ( 2116:. Before November 2013, the rating was branded 1375:The following ultra-high speeds are specified: 11137:"Garanti Bank deploys NFC services on microSD" 9055:"SanDisk Extreme PRO SDHC And SDXC UHS-I Card" 8809: 7294:"Advantages and Disadvantages of Memory Cards" 7213: 7211: 7209: 6039:All SD card families initially use a 3.3 4212:prototyping microprocessors access to SD cards 3849:An internal microSD card reader, taken from a 424:The standard was introduced in August 1999 by 12498: 11638:"Smartphones wählerisch bei microSDHC-Karten" 9867: 9865: 9725: 8833: 8831: 8602:"SanDisk's 1TB microSD card is now available" 7722: 7720: 7365: 6027:The command interface is an extension of the 2821: 651:(CES) 2009 (January 7–10). At the same show, 390:(SDA) developed for use in portable devices. 11908:"Linksys WRT54G-TM SD/MMC mod – DD-WRT Wiki" 11603: 10171: 10169: 9878:. SD Association. 2010-05-18. Archived from 9863: 9861: 9859: 9857: 9855: 9853: 9851: 9849: 9847: 9845: 9740:"Bus Speed (Default Speed/ High Speed/ UHS)" 9606: 9604: 9145:. SD Association. 2016-02-26. Archived from 8996:"Bus Speed (Default Speed/ High Speed/ UHS)" 8790: 8265:. .panasonic.com. 2013-03-20. Archived from 7400:. SD Association. 2010-06-22. Archived from 7051:Size comparison of various flash cards: SD, 6991:drivers. However, the system was eventually 6849: 3157:microSD cards with Secure Elements and NFC ( 2303: 2300: 1549: 1538: 11551:"Speed Class Standards for Video Recording" 9565: 9563: 9266:. SD Association. June 2018. Archived from 8702: 7921:"Pretec introduces world's first SDXC card" 7558: 7543: 7206: 7006:The Simplified Specification is available. 6328:The SDXC specification mandates the use of 1467:Version 9.1 was announced in October 2023. 1464:Version 9.0 was released in February 2022. 580: 27:Type of memory storage for portable devices 12505: 12491: 12225:Card speed – Card Readers and Memory Cards 12062:"Optimizing Linux with cheap flash drives" 10204: 9960: 8828: 8816:Bus Speed (Default Speed/ High Speed/ UHS) 8178:"SDXC/SDHC 433X Class 16 Card from Pretec" 8057: 7717: 7315: 2591: 2552: 2493: 2473: 2450: 2440: 2420: 2410: 2400: 2374: 2364: 2335: 2291: 2214:Comparison of SD card Speed Class ratings 861: 854: 847: 840: 443:In January 2000, the companies formed the 67: 58: 12084: 12082: 11403: 10489:"Linux Supports A2 SDcards now! – ODROID" 10166: 9973:. SD Card. 5 January 2011. Archived from 9842: 9601: 8150: 8086: 8027: 6944:Learn how and when to remove this message 6803:Learn how and when to remove this message 6152:Learn how and when to remove this message 4835:Learn how and when to remove this message 4530:Learn how and when to remove this message 4407:microSD card and standard SD card adapter 4392:Learn how and when to remove this message 3487:Learn how and when to remove this message 3064:Learn how and when to remove this message 2924:Learn how and when to remove this message 2737: 2149: 2084: 1356: 1047:Learn how and when to remove this message 816:Comparison of SD card capacity standards 265:1,612.8 mm (0.09842 cu in) 30:"SDHC" redirects here. For the gene, see 12455:Optimizing Linux with cheap flash drives 11655: 11609: 11107:"Moneto to bring NFC payments to Europe" 10548:"Flash Memory Cards and X-Speed Ratings" 10235: 9968:"Association Triples Speeds with UHS-II" 9647:"Raspberry Pi forum: SD card benchmarks" 9560: 9355:. Tuxera.com. 2010-11-22. Archived from 7544:Corporation, Bonnier (August 27, 2000). 7046: 6955: 6653: 6649: 6350: 6284:files in a hierarchical directory tree. 5991: 5979: 5963: 5504:Interrupt (SDIO cards) (negative Logic) 5161:Interrupt (SDIO cards) (negative logic) 4895: 4701:microSD, microSDHC, microSDXC, microSDUC 4550: 4199: 4090: 4044: 4024: 3844: 3593: 3505: 3498: 3270: 3075: 2943: 2935: 2064: 2056: 2048: 1433: 1404: 1216: 1173: 1125: 1058: 619: 584: 561: 536: 11635: 11526:"Inside Marshmallow: Adoptable storage" 9380:. Microsoft. 2011-10-08. Archived from 9229: 8797:What are SDHC, miniSDHC, and microSDHC? 8115: 7997: 7967: 7618:from the original on September 11, 2024 7446: 6034: 3352:product can be plugged directly into a 3112:" that allows the transfer of ISO 7816 2620: 1479: 1105:Content Protection for Recordable Media 73:From top to bottom: SD, miniSD, microSD 14: 12677:Computer-related introductions in 1999 12669: 12403:"New adapters for monolithic devices!" 12332:from the original on December 18, 2020 12079: 11411:"Simplified Version of SDIO CARD SPEC" 11354:"SanDisk Ultra II SD Plus USB/SD card" 11301: 10965: 10806:from the original on 19 September 2015 10205:Gartenberg, Chain (25 February 2019). 9579:, America: NEC Laboratories, table 3, 9169: 8311: 7817:from the original on 11 September 2024 7168: 7166: 7164: 7162: 7160: 7158: 7156: 5972:chip that holds the data (bottom) and 4879:Two differential lines SD UHS-II mode: 3275:SD cards with dual interfaces: SD and 3210: 2829: 12486: 12409:from the original on February 4, 2018 12232:from the original on January 25, 2007 11838:from the original on October 13, 2019 11506:from the original on 30 November 2020 11475:from the original on 30 November 2020 11215: 11104: 11022: 10884: 10733: 10645:"Windows Phone 7 – Microsoft Support" 10062:from the original on 23 December 2018 9904:"SanDisk Extreme microSDXC datasheet" 9451: 8990: 8988: 8838:About Compatibility with Host Devices 8763: 8761: 8759: 8579:. Kingston Technology Europe Co LLP. 8337: 7636: 7608:"HD録画のカムコーダ、DVD-R内蔵ミニノート……会場で見かけた新製品" 7559:Corporation, Bonnier (May 27, 2000). 6835:+ 1) × 524288 where for SDHC 4112 ≤ 4269: 4114: 3368:(microSDHC, SDHC and USB) product of 2536: 2530: 2527: 2231: 2228: 2218: 1806: 1728: 1689: 1650: 1590: 1514: 1511: 1495: 1492: 1489: 768: 12354:. Mailman.laptop.org. Archived from 11757:"MEAD-SD01 SDHC card adapter (Sony)" 11228:from the original on 6 November 2021 11117:from the original on 25 January 2021 11035:from the original on 25 January 2021 10978:from the original on 23 October 2021 10897:from the original on 19 January 2021 10836:from the original on 26 January 2021 10486: 9792: 9511: 9481: 9232:"New Video Speed Class for SD Cards" 8574: 8371:from the original on 29 January 2013 7889: 7730:. Phonescoop.com. 28 February 2004. 7340: 7288: 7286: 7256: 7254: 6882:adding citations to reliable sources 6853: 6741:adding citations to reliable sources 6712: 6637:Storage capacity and compatibilities 6366: 6090:adding citations to reliable sources 6061: 6000: 4773:adding citations to reliable sources 4744: 4468:adding citations to reliable sources 4439: 4330:adding citations to reliable sources 4301: 4297: 3949: 3425:adding citations to reliable sources 3396: 3002:adding citations to reliable sources 2973: 2862:adding citations to reliable sources 2833: 2597:Application Performance Class 2 (A2) 2558:Application Performance Class 1 (A1) 2207:Bottom view showing SD card contacts 2130: 1438:Front and back of an SD Express card 1195:file system as a mandatory feature. 985:adding citations to reliable sources 956: 709:In April 2012, Panasonic introduced 541:MiniSD memory card including adapter 491:SD was designed to compete with the 287:165 mm (0.0101 cu in) 276:602 mm (0.0367 cu in) 11680: 11493: 11302:Robson, Wayde (22 September 2008). 11004:from the original on 20 August 2021 10966:Hudson, Andrew (10 December 2012). 10499:from the original on 25 August 2023 10236:Henchman, Mark (25 February 2019). 10154:from the original on August 2, 2024 9610: 9006:from the original on 4 October 2016 8545:Integral Memory (22 January 2018). 8488: 8433: 8389: 7671:"SanDisk releases new memory cards" 7153: 6843:≈32 GB ≤ Capacity ≤ 2 TB 6708: 4195: 3998:adapter lets SD cards be used in a 3936:storage expansion is uncompromised 3653:family (ultra-high speed (UHS) bus) 3621: 3372:, which was available in 2008 only. 1954: 1924: 1840: 1835: 1237: 925: 24: 12687:Solid-state computer storage media 12300:Simplified Specification Agreement 12161:"SD Specifications Version 4.10", 11579: 11494:Ali, Mudassar (27 November 2018). 11216:Corum, Chris (14 September 2011). 11105:Clark, Sarah (11 September 2012). 10684:from the original on 8 August 2019 10571: 10244:from the original on 8 August 2019 10217:from the original on 15 March 2019 10025:. 23 February 2017. Archived from 9573:Revisiting Storage for Smartphones 9328:"About the SD and SDXC card slots" 8985: 8756: 8518: 8033: 8003: 7973: 7072:resides on the same physical die. 6172:. This lets them operate like the 4971:SPI Card Select (Negative logic) 4883:low-voltage differential signaling 4086: 3920:. While data stored internally on 3589: 2102: 1470: 1370:low-voltage differential signaling 1324:drive. This was superseded by the 793: 615: 495:, a flash storage format with DRM 25: 12698: 12425: 12108:"microSD & microSDHC Cards", 12089:SD Formatter 3.1 for SD/SDHC/SDXC 11809:. Support.apple.com. 2013-06-08. 11807:"About the SD and SDXC card slot" 11784:. Embeddedarm.com. Archived from 11561:from the original on 7 April 2016 11386:"A-DATA Super Info SD Card 512MB" 10885:Clark, Mike (23 September 2010). 10746:from the original on 4 March 2021 10734:Clark, Sarah (11 November 2009). 10341:from the original on 7 April 2016 10116:(Press release). SD association. 8612:from the original on 17 June 2020 7283: 7251: 6987:(NDA) prohibiting development of 5310:non-SPI mode detection (by card) 4740: 4560:SD (SDSC), SDHC, SDXC, SDIO, SDUC 3631:the host device cannot navigate ( 1485:Comparison of SD card bus speeds 1114:Addition of a write-protect notch 702:(64 GB and 128 GB) and 12541: 12512: 12395: 12375: 12369: 12344: 12312: 12293: 12268: 12243: 12215: 12187: 12154: 12128: 12101: 12054: 12018:from the original on 3 June 2018 11950: 11900: 11875: 11850: 11824: 11799: 11774: 11749: 11730: 11705: 11573: 11543: 11518: 11487: 11457: 11428: 11413:. SD Association. Archived from 11378: 11346: 11321: 11295: 11270: 11240: 11209: 11179: 11154: 11129: 11098: 11072: 11047: 11016: 10990: 10959: 10934: 10909: 10878: 10848: 10818: 10788: 10758: 10727: 10696: 10666: 10637: 10608: 10590: 10565: 10540: 10511: 10480: 10444: 10415: 10384: 10285: 10256: 10229: 10198: 10134: 10099: 10074: 10044: 10012: 9991: 9931: 9896: 9482:List, Jenny (29 November 2017). 8687:. SD Association. Archived from 8642:from the original on 2024-09-11. 8467:. news.samsung.com. 2016-05-10. 8209:, 7 October 2017, archived from 7197: 7188: 7179: 7066: 6858: 6717: 6066: 5984:Inside a 2 GB SD card: two 4749: 4444: 4435: 4424: 4413: 4306: 4146:, memory cards in an integrated 3912:, enabling applications such as 3888: 3628: 3401: 3257: 3245: 3231: 3219: 3103: 2978: 2969: 2838: 2816: 2703: 2687: 2671: 2655: 2178: 2167: 1796: 1738: 1732: 1693: 1654: 1645: 1634: 1594: 1340: 961: 12476:Types of Memory Cards and Sizes 12471:Independent SD Card Speed Tests 12451:elm-chan.org, December 26, 2019 12384:from the original on 2019-10-13 12282:from the original on 2010-12-15 12253:. Egg head cafe. Archived from 12228:, HJ Reggel, December 1, 2006, 12201:, December 2006, archived from 12177:from the original on 2013-10-29 12068:from the original on 2013-10-07 12043:from the original on 2010-02-11 11939:from the original on 2011-11-21 11914:from the original on 2010-09-01 11889:from the original on 2011-12-25 11864:from the original on 2011-11-21 11813:from the original on 2011-09-03 11763:from the original on 2017-06-29 11719:from the original on 2023-06-24 11694:from the original on 2016-11-24 11669:from the original on 2016-11-26 11644:from the original on 2019-01-01 11592:from the original on 2024-09-11 11532:from the original on 2016-02-21 11528:. Android Central. 2015-11-15. 11446:from the original on 2023-09-13 11392:from the original on 2012-05-18 11368:from the original on 2019-08-08 11335:from the original on 2011-11-24 11310:from the original on 2013-06-02 11258:from the original on 2021-10-29 11193:. 11 March 2013. Archived from 11168:from the original on 2016-04-20 11023:Clark, Sarah (19 August 2010). 10948:from the original on 2016-04-27 10923:from the original on 2015-07-08 10866:from the original on 2021-10-29 10776:from the original on 8 May 2021 10655:from the original on 2016-05-03 10626:from the original on 2019-04-11 10529:from the original on 2019-02-28 10469:from the original on 2016-11-23 10433:from the original on 2019-02-28 10404:from the original on 2013-11-13 10274:from the original on 2016-10-04 10187:from the original on 2024-04-01 10123:from the original on 2020-05-20 10088:from the original on 2019-08-06 9949:from the original on 2020-09-21 9920:from the original on 2021-01-08 9816: 9805:from the original on 2013-12-19 9786: 9775:from the original on 2010-08-28 9761: 9750:from the original on 2016-10-04 9714:from the original on 2016-10-04 9696: 9653:from the original on 2014-08-13 9639: 9623:from the original on 2015-12-08 9586:from the original on 2012-10-10 9549:from the original on 2014-02-07 9535: 9524:from the original on 2018-11-22 9505: 9494:from the original on 2018-12-21 9475: 9464:from the original on 2018-12-21 9445: 9434:from the original on 2014-01-11 9420: 9409:from the original on 2019-12-18 9395: 9370: 9345: 9334:from the original on 2011-09-03 9320: 9309:from the original on 2021-11-07 9285: 9253: 9242:from the original on 2016-03-07 9223: 9178:from the original on 2016-03-03 9163: 9105: 9094:from the original on 2021-10-11 9076: 9065:from the original on 2021-04-10 9047: 9018: 8974:from the original on 2011-11-21 8956: 8945:from the original on 2010-01-09 8927: 8916:from the original on 2010-02-09 8898: 8887:from the original on 2010-01-03 8869: 8850: 8779:from the original on 2024-09-11 8745:from the original on 2019-02-28 8727: 8716:from the original on 2020-05-20 8663:from the original on 2020-05-20 8624: 8594: 8583:from the original on 2018-11-21 8568: 8557:from the original on 2018-06-12 8538: 8527:from the original on 2017-08-31 8512: 8501:from the original on 2017-01-18 8482: 8471:from the original on 2016-08-08 8457: 8446:from the original on 2017-01-18 8427: 8416:from the original on 2015-09-01 8402: 8383: 8357: 8346:from the original on 2013-12-29 8331: 8320:from the original on 2013-12-19 8305: 8294:from the original on 2014-01-07 8280: 8242:from the original on 2017-06-25 8224: 8195: 8184:from the original on 2011-11-29 8170: 8159:from the original on 2023-11-11 8144: 7956:from the original on 2010-02-11 7931:from the original on 2010-08-21 7902:from the original on 2024-03-09 7872:from the original on 2010-01-07 7858: 7847:from the original on 2022-03-08 7829: 7793: 7763:from the original on 2024-09-11 7745: 7734:from the original on 2012-07-22 7706:from the original on 2024-09-11 7692: 7681:from the original on 2024-02-22 7663: 7651:from the original on 2 May 2019 7630: 7600: 7575:"256 and 512 MB MMC / SD cards" 7567: 7552: 7537: 7526:from the original on 2021-07-09 7512: 7490: 7479:from the original on 2010-09-08 7429:from the original on 2019-09-04 7398:"Using SD Memory Cards is Easy" 7379:from the original on 2019-01-01 7354:from the original on 2019-09-10 7329:from the original on 2019-09-04 7272:from the original on 2014-01-17 7144: 7115: 7097:Serial Peripheral Interface Bus 6869:needs additional citations for 6728:needs additional citations for 6077:needs additional citations for 5843:SD Serial Data 1 (memory cards) 4856:Serial Peripheral Interface Bus 4760:needs additional citations for 4455:needs additional citations for 4317:needs additional citations for 4020: 3412:needs additional citations for 2989:needs additional citations for 2849:needs additional citations for 2107:UHS-I and UHS-II cards can use 972:needs additional citations for 805: 482:Secure Digital Music Initiative 185:: 50 MB/s or 104 MB/s 12587:(MS, MS-PRO, MS-PRO HG, MS-XC) 11610:Schnurer, Georg (2007-02-28). 11496:"Benefits of Using an SD Card" 10302:: 9. June 2018. Archived from 9230:Chaundy, Fabian (2016-02-26). 8312:Lawler, Richard (2012-04-15). 7522:. Bitwarsoft.com. 2020-07-24. 7499:The Odd History of the SD Logo 7465: 7440: 7415: 7390: 6057: 5968:Inside a 512 MB SD card: 4858:is primarily used by embedded 3114:Application Protocol Data Unit 1107:(CPRM) security circuitry for 812:functions with data storage. 13: 1: 12014:, SD Card, 11 December 2020, 11883:"iNAND Embedded Flash Drives" 11388:. Tech power up. 2007-02-20. 8151:Conneally, Tim (2011-03-16). 7637:Rojas, Peter (2 March 2004). 7473:"Press Releases 17 July 2003" 7244: 6828:Capacity is calculated thus: 6670:Storage capacity calculations 5996:Inside a 16 GB SDHC card 4848:the same for all card sizes. 3885:, tend to use microSD cards. 3392: 3384:– In 2006, ADATA announced a 3330:– In 2006, SanDisk announced 2512:Application Performance Class 2507:Application Performance Class 2158: 1429: 1348: 12437:SD simplified specifications 12432:SD Association Official Site 11139:. RFID Ready. Archived from 10574:"The Tiniest SD Card Locker" 10361:"SD Standards Brochure 2017" 9681:. SDCard.org. Archived from 9405:. phoronix.com. 2019-08-30. 9170:Shilov, Anton (2016-03-01). 8129:. 2010-02-22. Archived from 7700:"TransFlash becomes MicroSD" 7300:. 2016-10-11. Archived from 7108: 6677: 5959: 5308:Card detection (by host) and 4692: 2940:Unlocked and locked SD cards 2146:V6, V10, V30, V60 and V90). 1315:speed limit of random access 952: 659:also announced a comparable 370:, officially abbreviated as 7: 12352:"OLPC mailing list archive" 12278:. Linux.com. 14 June 2007. 11636:Feddern, Boi (2013-03-18). 9117:Kingston Technology Company 9088:Kingston Technology Company 8803:September 16, 2008, at the 8412:. SanDisk.com. 2014-02-24. 7447:Andrews, Ben (2022-10-25). 7075: 4647: 4546: 3584:Serial Peripheral Interface 3238:Toshiba FlashAir 16 GB 2811: 787: 566:microSD card inserted on a 484:(SDMI) standard and a high 10: 12703: 12624:(PCMCIA, CardBus, CardBay) 12533:Comparison of memory cards 12320:"Simplified Specification" 11910:. Dd-wrt.com. 2010-02-22. 11164:. NFC World+. 2012-10-31. 10550:. Kingston. Archived from 9793:Rigg, Jamie (2013-07-16). 8338:Renée, V (23 March 2013). 7925:Digital Photography Review 7453:Digital Photography Review 7082:Comparison of memory cards 6650:SDSC cards above 1 GB 6051: 4653:miniSD, miniSDHC, miniSDIO 3840: 3264:Transcend Wi-Fi 16 GB 3181:, first launched in 2012. 3116:commands to, for example, 2822:Commands to disable writes 2641: 2636: 2633: 2624: 1613: 1564: 1561: 1558: 1451:introduced in the future. 1420: 1241: 557: 450: 43:For the earlier form, see 42: 39:Comparison of memory cards 36: 29: 12550: 12539: 12520: 12114:, Toshiba, archived from 11012:– via Businesswire. 9611:Lui, Gough (2014-01-16). 9596:lower-grade ones overall. 9512:Sims, Gary (9 May 2016). 9452:deKay (15 January 2015). 9330:. Apple Inc. 2011-05-03. 8964:"Capacity (SD/SDHC/SDXC)" 8941:. Microsoft. 2008-02-21. 8912:. Microsoft. 2008-05-15. 8883:. Microsoft. 2008-02-15. 8034:Ng, Jansen (2009-12-22). 8004:Ng, Jansen (2009-11-30). 7974:Ng, Jansen (2009-11-24). 7890:Mook, Nate (2009-01-08). 7325:. DP Review. 1999-08-24. 6850:Openness of specification 5951:, NC = Not Connected (or 4005:Some devices such as the 3695: 3690: 3687: 3682: 3679: 3676: 3650: 3579: 2722:(approximately 1.23 2590: 2580: 2551: 2484: 2464: 2459: 2439: 2431: 2399: 2388: 2383: 2349: 2344: 2320: 2315: 2312: 2306: 2273: 2266: 2261: 2252: 2247: 2244: 2241: 2238: 2223: 2011: 1983: 1920: 1846: 1823: 1820: 1817: 1814: 1771: 1763: 1731: 1710: 1707: 1692: 1671: 1653: 1629: 1616: 1593: 1572: 1555: 1552: 1533: 1528: 1525: 1522: 1519: 1506: 1498: 1400: 1111:(DRM) content-protection. 1109:digital rights management 943: 923: 886: 869: 836: 831: 828: 825: 822: 820: 801: 797: 649:Consumer Electronics Show 532: 515:Consumer Electronics Show 478:digital rights management 357: 343: 335: 294: 250: 236: 226: 214: 159: 147: 88: 78: 66: 57: 12442:SD Memory Card Formatter 12039:. Engadget. 2009-01-07. 11832:"SIO2SD for 8-bit Atari" 11663:"H2testw heise Download" 10052:"Introducing SD Express" 9771:. Engadget. 2010-06-24. 8290:. Pro-av.panasonic.net. 7141:here, 1 TB = 1024 B 6985:non-disclosure agreement 3343:Integrated USB connector 3197:Arizona State University 3159:near-field communication 3129:near-field communication 2718:drive speed of 150 2627:CD and DVD writing speed 2044: 1378: 1303: 700:Centon Electronics, Inc. 581:2006–2008: SDHC and SDIO 12645:Universal Flash Storage 12011:Fragmentation and Speed 9059:shop.westerndigital.com 7952:. The Digital Picture. 7868:. SanDisk. 2009-01-07. 7475:. Toshiba. 2003-07-17. 7375:. Toshiba. 2015-03-30. 7348:"Welcome to SD-3C, LLC" 7103:Universal Flash Storage 4161:Since late 2009, newer 4011:Samsung Galaxy Note 8.0 3932:device. A benefit over 3664:SD compatibility table 3627:A newer card may use a 3620:A newer card may offer 3203:technology provided by 1212: 1169: 1121: 12405:. September 21, 2017. 12309:from the SDA's website 12137:Micro SD specification 11612:"Gefälschte SD-Karten" 10917:"smartSD Memory Cards" 9824:"SD Standard Overview" 8180:. Pretec. 2011-06-13. 7063: 6961: 6659: 5997: 5989: 5977: 4905: 4556: 4213: 4188:. For example SIO2SD ( 4100: 4057: 4042: 4037:occurs. Also used for 3853: 3611:backward compatibility 3606: 3511: 3503: 3279: 3252:PQI air card 4 GB 3226:Eye-Fi Mobi 16 GB 3081: 2949: 2941: 2738:Real-world performance 2150:SD Express Speed Class 2085:(Original) Speed Class 2070: 2062: 2054: 1439: 1410: 1357:Ultra High Speed (UHS) 1335: 1230: 1187: 1139: 1068: 634:Samsung Galaxy Note II 625: 608: 570: 542: 53:(SD, SDHC, SDXC, SDUC) 12143:, DTT, archived from 12064:. Linux Weekly News. 11582:"On MicroSD Problems" 10649:support.microsoft.com 10598:US patent 7827370 7350:. SD-3C. 2015-03-30. 7050: 6959: 6657: 6351:Risks of reformatting 6052:higher transfer speed 5995: 5983: 5967: 5589:Four-bit SD bus mode 5502:Unused (memory cards) 5159:Unused (memory cards) 5127:SPI Serial Data Out 4899: 4872:Four-bit SD bus mode: 4639:(as thin as MMC) for 4554: 4236:(e.g. a SD card slot 4203: 4186:Atari 8-bit computers 4094: 4048: 4028: 3988:parallel printer port 3950:technical development 3848: 3759:FAT32 in non-UHS mode 3739:FAT32 in non-UHS mode 3710:FAT16, < 4 GB 3707:FAT16, < 4 GB 3647:storage capacity bits 3597: 3509: 3502: 3274: 3079: 2947: 2939: 2068: 2060: 2052: 1437: 1408: 1220: 1177: 1129: 1062: 623: 588: 565: 540: 523:San Ramon, California 436:as an improvement on 12222:"SD Compatibility", 11471:. 23 November 2017. 10802:. 15 February 2010. 10772:. 10 November 2009. 10680:. 17 November 2010. 10493:ODROID by Hardkernel 10337:. 11 December 2020. 10001:. memorycard-lab.com 9999:"UHS-II camera list" 8342:. Nofilmschool.com. 7172:here, 1 GB = 1 7015:One Laptop per Child 6878:improve this article 6737:improve this article 6689:+ 1) × 2 where 0 ≤ 6376:TwinMOS Technologies 6313:with partition type 6276:with partition type 6260:with partition type 6246:with partition type 6227:with partition type 6209:with partition type 6191:with partition type 6086:improve this article 6035:Electrical interface 5246:One-bit SD bus mode 4997:SPI Serial Data In 4866:One-bit SD bus mode: 4769:improve this article 4464:improve this article 4326:improve this article 4247:router and wired to 4175:GUID Partition Table 4062:counterfeit products 3421:improve this article 3205:DeviceFidelity, Inc. 3125:DeviceFidelity, Inc. 2998:improve this article 2858:improve this article 1480:Bus speed comparison 1456:direct memory access 1258:(SP1) and later and 981:improve this article 630:Samsung Galaxy S III 591:magnetic-core memory 12682:Japanese inventions 11254:. 14 October 2011. 11094:– via Cision. 11086:on January 13, 2012 10862:. 26 October 2013. 10032:on 24 February 2017 7266:steves-digicams.com 6658:4 GB SDSC card 6387: 5590: 5247: 4910: 3867:video game consoles 3665: 3535:tuners, TV tuners, 3211:Vendor enhancements 2830:Write-protect notch 2763:Write amplification 2539:sequential writing 2524: 2215: 2125:tapeless camcorders 1803: 1486: 817: 800:), ultra capacity ( 480:(DRM) based on the 476:(MMC) and provided 403:video game consoles 54: 12630:(SDSC, SDHC, SDXC) 12528:Memory card reader 12449:How to Use MMC/SDC 12305:2008-10-28 at the 12170:, SD Association, 12094:2021-02-07 at the 11935:. SD Association. 11860:. SD Association. 11782:"TS-7800 Embedded" 11742:2011-01-09 at the 11469:Data Recovery Blog 11197:on 27 January 2021 10919:. SD Association. 10397:. SD Association. 10270:. SD Association. 10084:. NDSS Symposium. 10056:Card wave services 9830:. 11 December 2020 9746:. SD Association. 9710:. SD Association. 8862:2011-08-28 at the 8843:2011-11-21 at the 8821:2016-10-04 at the 8712:. SD Association. 8659:. SD Association. 8636:westerndigital.com 8213:on 11 October 2011 7810:. SD Association. 7786:2009-01-15 at the 7614:. March 22, 2004. 7593:2009-01-14 at the 7064: 6993:reverse-engineered 6962: 6660: 6385: 5998: 5990: 5978: 5588: 5245: 5075:SPI Serial Clock 4908: 4906: 4557: 4270:Music distribution 4224:While some modern 4214: 4148:memory card reader 4121:personal computers 4115:Personal computers 4101: 4058: 4043: 4007:Samsung Galaxy Fit 3854: 3663: 3607: 3573:Bluetooth profiles 3569:USB device classes 3543:and interfaces to 3512: 3504: 3382:Integrated display 3328:Pre-loaded content 3280: 3082: 2950: 2942: 2773:File fragmentation 2522: 2245:Video Speed Class 2219:Minimum sequential 2213: 2071: 2063: 2055: 1801: 1484: 1440: 1411: 1326:Speed Class Rating 1231: 1188: 1140: 1103:The SD card added 1069: 815: 794:three form factors 769:2019–present: SDUC 757:In February 2019, 626: 609: 571: 543: 504:Super Density Disc 50: 12664: 12663: 11586:bunniestudios.com 10572:By (2014-01-19). 10462:. November 2016. 9518:Android Authority 8638:. 11 April 2024. 8263:"For Journalists" 7561:"Popular Science" 7546:"Popular Science" 7520:"What is SD Card" 7502:, 21 January 2019 7237:here, MB = 1024 B 6954: 6953: 6946: 6928: 6813: 6812: 6805: 6787: 6634: 6633: 6367:Power consumption 6178:personal computer 6162: 6161: 6154: 6136: 6001:Command interface 5927: 5926: 5871:SD Serial Data 2 5811:SD Serial Data 0 5651:SD Serial Data 3 5586: 5585: 5470:SD Serial Data 0 5243: 5242: 4845: 4844: 4837: 4819: 4543:passive adapter. 4540: 4539: 4532: 4514: 4402: 4401: 4394: 4376: 4298:Technical details 4292:Astell & Kern 4182:vintage computers 4154:benefit over USB 4111:with an adapter. 4041:64 GB fakes. 3838: 3837: 3762:FAT32 in UHS mode 3497: 3496: 3489: 3471: 3177:programs such as 3074: 3073: 3066: 3048: 2934: 2933: 2926: 2908: 2785:sequential access 2712: 2711: 2618: 2617: 2537:Minimum sustained 2504: 2503: 2136:Video Speed Class 2131:Video Speed Class 2039: 2038: 1794: 1793: 1057: 1056: 1049: 1031: 950: 949: 808:, which combines 468:(Matsushita) and 432:(Matsushita) and 365: 364: 16:(Redirected from 12694: 12545: 12507: 12500: 12493: 12484: 12483: 12419: 12418: 12416: 12414: 12399: 12393: 12392: 12390: 12389: 12373: 12367: 12366: 12364: 12363: 12348: 12342: 12341: 12339: 12337: 12331: 12324: 12316: 12310: 12297: 12291: 12290: 12288: 12287: 12272: 12266: 12265: 12263: 12262: 12247: 12241: 12240: 12239: 12237: 12219: 12213: 12212: 12211: 12210: 12191: 12185: 12184: 12183: 12182: 12176: 12169: 12158: 12152: 12151: 12149: 12142: 12132: 12126: 12125: 12124: 12123: 12111:Memory Solutions 12105: 12099: 12098:, SD Association 12086: 12077: 12076: 12074: 12073: 12058: 12052: 12051: 12049: 12048: 12033: 12027: 12026: 12025: 12023: 12006: 12000: 11999: 11992: 11979: 11978: 11976: 11975: 11969: 11963:. Archived from 11962: 11954: 11948: 11947: 11945: 11944: 11929: 11923: 11922: 11920: 11919: 11904: 11898: 11897: 11895: 11894: 11879: 11873: 11872: 11870: 11869: 11854: 11848: 11847: 11845: 11843: 11828: 11822: 11821: 11819: 11818: 11803: 11797: 11796: 11794: 11793: 11778: 11772: 11771: 11769: 11768: 11759:. Pro.sony.com. 11753: 11747: 11734: 11728: 11727: 11725: 11724: 11709: 11703: 11702: 11700: 11699: 11688:"F3 by Digirati" 11684: 11678: 11677: 11675: 11674: 11659: 11653: 11652: 11650: 11649: 11633: 11627: 11626: 11624: 11623: 11607: 11601: 11600: 11598: 11597: 11577: 11571: 11570: 11568: 11566: 11547: 11541: 11540: 11538: 11537: 11522: 11516: 11515: 11513: 11511: 11491: 11485: 11484: 11482: 11480: 11461: 11455: 11454: 11452: 11451: 11432: 11426: 11425: 11423: 11422: 11407: 11401: 11400: 11398: 11397: 11382: 11376: 11375: 11374: 11373: 11350: 11344: 11343: 11341: 11340: 11325: 11319: 11318: 11316: 11315: 11299: 11293: 11292: 11290: 11289: 11280:. Archived from 11274: 11268: 11267: 11265: 11263: 11244: 11238: 11237: 11235: 11233: 11213: 11207: 11206: 11204: 11202: 11183: 11177: 11176: 11174: 11173: 11158: 11152: 11151: 11149: 11148: 11133: 11127: 11126: 11124: 11122: 11102: 11096: 11095: 11093: 11091: 11076: 11070: 11069: 11067: 11066: 11057:. Archived from 11051: 11045: 11044: 11042: 11040: 11020: 11014: 11013: 11011: 11009: 10994: 10988: 10987: 10985: 10983: 10963: 10957: 10956: 10954: 10953: 10938: 10932: 10931: 10929: 10928: 10913: 10907: 10906: 10904: 10902: 10882: 10876: 10875: 10873: 10871: 10852: 10846: 10845: 10843: 10841: 10822: 10816: 10815: 10813: 10811: 10792: 10786: 10785: 10783: 10781: 10762: 10756: 10755: 10753: 10751: 10731: 10725: 10724: 10722: 10721: 10715: 10708: 10700: 10694: 10693: 10691: 10689: 10670: 10664: 10663: 10661: 10660: 10641: 10635: 10634: 10632: 10631: 10612: 10606: 10605: 10604: 10600: 10594: 10588: 10587: 10585: 10584: 10569: 10563: 10562: 10560: 10559: 10544: 10538: 10537: 10535: 10534: 10515: 10509: 10508: 10506: 10504: 10484: 10478: 10477: 10475: 10474: 10468: 10457: 10448: 10442: 10441: 10439: 10438: 10419: 10413: 10412: 10410: 10409: 10403: 10396: 10388: 10382: 10381: 10379: 10378: 10372: 10366:. Archived from 10365: 10357: 10351: 10350: 10348: 10346: 10327: 10318: 10317: 10315: 10314: 10308: 10297: 10289: 10283: 10282: 10280: 10279: 10260: 10254: 10253: 10251: 10249: 10233: 10227: 10226: 10224: 10222: 10202: 10196: 10195: 10193: 10192: 10173: 10164: 10163: 10161: 10159: 10153: 10146: 10138: 10132: 10131: 10129: 10128: 10122: 10111: 10103: 10097: 10096: 10094: 10093: 10078: 10072: 10071: 10069: 10067: 10048: 10042: 10041: 10039: 10037: 10031: 10024: 10016: 10010: 10009: 10007: 10006: 9995: 9989: 9988: 9986: 9985: 9979: 9972: 9964: 9958: 9957: 9955: 9954: 9935: 9929: 9928: 9926: 9925: 9919: 9908: 9900: 9894: 9893: 9891: 9890: 9884: 9877: 9869: 9840: 9839: 9837: 9835: 9820: 9814: 9813: 9811: 9810: 9790: 9784: 9783: 9781: 9780: 9765: 9759: 9758: 9756: 9755: 9736: 9723: 9722: 9720: 9719: 9700: 9694: 9693: 9691: 9690: 9679:"SD Speed Class" 9675: 9662: 9661: 9659: 9658: 9643: 9637: 9636: 9630: 9628: 9617:Gough's techzone 9608: 9599: 9598: 9592: 9591: 9585: 9578: 9567: 9558: 9557: 9555: 9554: 9539: 9533: 9532: 9530: 9529: 9509: 9503: 9502: 9500: 9499: 9479: 9473: 9472: 9470: 9469: 9449: 9443: 9442: 9440: 9439: 9424: 9418: 9417: 9415: 9414: 9399: 9393: 9392: 9390: 9389: 9374: 9368: 9367: 9365: 9364: 9349: 9343: 9342: 9340: 9339: 9324: 9318: 9317: 9315: 9314: 9305:. 25 July 2008. 9289: 9283: 9282: 9280: 9278: 9272: 9265: 9257: 9251: 9250: 9248: 9247: 9227: 9221: 9220: 9218: 9217: 9211: 9204: 9196: 9187: 9186: 9184: 9183: 9167: 9161: 9160: 9158: 9157: 9151: 9144: 9136: 9127: 9126: 9124: 9123: 9109: 9103: 9102: 9100: 9099: 9080: 9074: 9073: 9071: 9070: 9051: 9045: 9044: 9042: 9041: 9032:. Archived from 9022: 9016: 9015: 9013: 9011: 8992: 8983: 8982: 8980: 8979: 8960: 8954: 8953: 8951: 8950: 8931: 8925: 8924: 8922: 8921: 8902: 8896: 8895: 8893: 8892: 8873: 8867: 8854: 8848: 8835: 8826: 8813: 8807: 8794: 8788: 8787: 8785: 8784: 8765: 8754: 8753: 8751: 8750: 8731: 8725: 8724: 8722: 8721: 8706: 8700: 8699: 8697: 8696: 8681: 8672: 8671: 8669: 8668: 8653: 8644: 8643: 8628: 8622: 8621: 8619: 8617: 8598: 8592: 8591: 8589: 8588: 8572: 8566: 8565: 8563: 8562: 8542: 8536: 8535: 8533: 8532: 8516: 8510: 8509: 8507: 8506: 8486: 8480: 8479: 8477: 8476: 8461: 8455: 8454: 8452: 8451: 8431: 8425: 8424: 8422: 8421: 8406: 8400: 8399: 8387: 8381: 8380: 8378: 8376: 8361: 8355: 8354: 8352: 8351: 8335: 8329: 8328: 8326: 8325: 8316:. Engadget.com. 8309: 8303: 8302: 8300: 8299: 8284: 8278: 8277: 8275: 8274: 8259: 8250: 8249: 8248: 8247: 8228: 8222: 8221: 8220: 8218: 8199: 8193: 8192: 8190: 8189: 8174: 8168: 8167: 8165: 8164: 8155:. Betanews.com. 8148: 8142: 8141: 8139: 8138: 8119: 8113: 8112: 8110: 8109: 8100:. Archived from 8090: 8084: 8083: 8081: 8080: 8071:. Archived from 8061: 8055: 8054: 8052: 8051: 8042:. Archived from 8031: 8025: 8024: 8022: 8021: 8012:. Archived from 8001: 7995: 7994: 7992: 7991: 7982:. Archived from 7971: 7965: 7964: 7962: 7961: 7946: 7940: 7939: 7937: 7936: 7917: 7911: 7910: 7908: 7907: 7887: 7881: 7880: 7878: 7877: 7862: 7856: 7855: 7853: 7852: 7833: 7827: 7826: 7824: 7822: 7816: 7805: 7797: 7791: 7778: 7772: 7771: 7769: 7768: 7749: 7743: 7742: 7740: 7739: 7724: 7715: 7714: 7712: 7711: 7696: 7690: 7689: 7687: 7686: 7667: 7661: 7660: 7658: 7656: 7634: 7628: 7627: 7625: 7623: 7604: 7598: 7585: 7579: 7578: 7571: 7565: 7564: 7556: 7550: 7549: 7541: 7535: 7534: 7532: 7531: 7516: 7510: 7509: 7508: 7507: 7494: 7488: 7487: 7485: 7484: 7469: 7463: 7462: 7460: 7459: 7444: 7438: 7437: 7435: 7434: 7419: 7413: 7412: 7410: 7409: 7394: 7388: 7387: 7385: 7384: 7369: 7363: 7362: 7360: 7359: 7344: 7338: 7337: 7335: 7334: 7319: 7313: 7312: 7310: 7309: 7290: 7281: 7280: 7278: 7277: 7258: 7238: 7235: 7222: 7215: 7204: 7201: 7195: 7192: 7186: 7183: 7177: 7170: 7151: 7148: 7142: 7139: 7122: 7119: 7034:USB mass storage 7022:embedded systems 6949: 6942: 6938: 6935: 6929: 6927: 6886: 6862: 6854: 6808: 6801: 6797: 6794: 6788: 6786: 6745: 6721: 6713: 6709:Versions 2 and 3 6388: 6384: 6346: 6342: 6292: 6272:For SDXC cards: 6239:For SDHC cards: 6184:For SDSC cards: 6157: 6150: 6146: 6143: 6137: 6135: 6094: 6070: 6062: 5591: 5587: 5248: 5244: 4911: 4907: 4860:microcontrollers 4840: 4833: 4829: 4826: 4820: 4818: 4777: 4753: 4745: 4736: 4734: 4733: 4729: 4725: in × 4724: 4723: 4719: 4715: in × 4714: 4713: 4709: 4688: 4686: 4685: 4681: 4677: in × 4676: 4675: 4671: 4667: in × 4666: 4665: 4661: 4638: 4636: 4635: 4631: 4627: in × 4626: 4625: 4621: 4617: in × 4616: 4615: 4611: 4608: 4599: 4597: 4596: 4592: 4588: in × 4587: 4586: 4582: 4578: in × 4577: 4576: 4572: 4569: 4535: 4528: 4524: 4521: 4515: 4513: 4472: 4448: 4440: 4428: 4417: 4397: 4390: 4386: 4383: 4377: 4375: 4334: 4310: 4302: 4265: 4226:microcontrollers 4196:Embedded systems 4144:tablet computers 4075:), or trying to 3666: 3662: 3622:greater capacity 3600: 3492: 3485: 3481: 3478: 3472: 3470: 3429: 3405: 3397: 3376:Different colors 3306:Toshiba FlashAir 3261: 3249: 3235: 3223: 3186:voice encryption 3069: 3062: 3058: 3055: 3049: 3047: 3006: 2982: 2974: 2929: 2922: 2918: 2915: 2909: 2907: 2866: 2842: 2834: 2707: 2691: 2675: 2659: 2631: 2630: 2614: 2606: 2598: 2595: 2586: 2578: 2573: 2567: 2559: 2556: 2525: 2521: 2500: 2497: 2490:700 Mbit/s 2487: 2480: 2477: 2470:460 Mbit/s 2467: 2457: 2454: 2447: 2444: 2437:220 Mbit/s 2434: 2427: 2424: 2417: 2414: 2407: 2404: 2396: 2391: 2381: 2378: 2371: 2368: 2360: 2355: 2353: 2342: 2339: 2331: 2326: 2324: 2298: 2295: 2287: 2282: 2277: 2242:UHS Speed Class 2216: 2212: 2182: 2171: 2017: 1989: 1961: 1956: 1931: 1926: 1898: 1887: 1881: 1875: 1869: 1863: 1856: 1842: 1837: 1804: 1800: 1787: 1775: 1766: 1759: 1750: 1748: 1742: 1736: 1724: 1722: 1714: 1705: 1703: 1697: 1682: 1680: 1666: 1664: 1658: 1643: 1641: 1627: 1625: 1611: 1606: 1604: 1598: 1583: 1581: 1575: 1547: 1545: 1536: 1487: 1483: 1390:Double data rate 1238:exFAT filesystem 1228: 1224: 1185: 1181: 1137: 1133: 1066: 1052: 1045: 1041: 1038: 1032: 1030: 989: 965: 957: 927: 865: 858: 851: 844: 818: 814: 606: 605: 601: 598: 386:card format the 347: 328: 319: 310: 240: 218: 206: 173:: 12.5 MB/s 163: 151: 140: 136: 127: 123: 114: 110: 101: 71: 62: 55: 49: 21: 12702: 12701: 12697: 12696: 12695: 12693: 12692: 12691: 12667: 12666: 12665: 12660: 12546: 12537: 12516: 12511: 12428: 12423: 12422: 12412: 12410: 12401: 12400: 12396: 12387: 12385: 12374: 12370: 12361: 12359: 12350: 12349: 12345: 12335: 12333: 12329: 12322: 12318: 12317: 12313: 12307:Wayback Machine 12298: 12294: 12285: 12283: 12274: 12273: 12269: 12260: 12258: 12249: 12248: 12244: 12235: 12233: 12221: 12220: 12216: 12208: 12206: 12193: 12192: 12188: 12180: 12178: 12174: 12167: 12160: 12159: 12155: 12147: 12140: 12134: 12133: 12129: 12121: 12119: 12107: 12106: 12102: 12096:Wayback Machine 12087: 12080: 12071: 12069: 12060: 12059: 12055: 12046: 12044: 12035: 12034: 12030: 12021: 12019: 12008: 12007: 12003: 11994: 11993: 11982: 11973: 11971: 11967: 11960: 11956: 11955: 11951: 11942: 11940: 11931: 11930: 11926: 11917: 11915: 11906: 11905: 11901: 11892: 11890: 11881: 11880: 11876: 11867: 11865: 11856: 11855: 11851: 11841: 11839: 11834:. May 9, 2016. 11830: 11829: 11825: 11816: 11814: 11805: 11804: 11800: 11791: 11789: 11780: 11779: 11775: 11766: 11764: 11755: 11754: 11750: 11744:Wayback Machine 11735: 11731: 11722: 11720: 11711: 11710: 11706: 11697: 11695: 11686: 11685: 11681: 11672: 11670: 11661: 11660: 11656: 11647: 11645: 11634: 11630: 11621: 11619: 11608: 11604: 11595: 11593: 11578: 11574: 11564: 11562: 11549: 11548: 11544: 11535: 11533: 11524: 11523: 11519: 11509: 11507: 11492: 11488: 11478: 11476: 11463: 11462: 11458: 11449: 11447: 11434: 11433: 11429: 11420: 11418: 11409: 11408: 11404: 11395: 11393: 11384: 11383: 11379: 11371: 11369: 11352: 11351: 11347: 11338: 11336: 11327: 11326: 11322: 11313: 11311: 11306:. AudioHolics. 11300: 11296: 11287: 11285: 11276: 11275: 11271: 11261: 11259: 11246: 11245: 11241: 11231: 11229: 11214: 11210: 11200: 11198: 11185: 11184: 11180: 11171: 11169: 11160: 11159: 11155: 11146: 11144: 11135: 11134: 11130: 11120: 11118: 11103: 11099: 11089: 11087: 11078: 11077: 11073: 11064: 11062: 11053: 11052: 11048: 11038: 11036: 11021: 11017: 11007: 11005: 10996: 10995: 10991: 10981: 10979: 10964: 10960: 10951: 10949: 10940: 10939: 10935: 10926: 10924: 10915: 10914: 10910: 10900: 10898: 10883: 10879: 10869: 10867: 10854: 10853: 10849: 10839: 10837: 10832:. 18 May 2010. 10824: 10823: 10819: 10809: 10807: 10794: 10793: 10789: 10779: 10777: 10764: 10763: 10759: 10749: 10747: 10732: 10728: 10719: 10717: 10713: 10706: 10702: 10701: 10697: 10687: 10685: 10672: 10671: 10667: 10658: 10656: 10643: 10642: 10638: 10629: 10627: 10614: 10613: 10609: 10602: 10596: 10595: 10591: 10582: 10580: 10570: 10566: 10557: 10555: 10546: 10545: 10541: 10532: 10530: 10517: 10516: 10512: 10502: 10500: 10485: 10481: 10472: 10470: 10466: 10455: 10451: 10449: 10445: 10436: 10434: 10421: 10420: 10416: 10407: 10405: 10401: 10394: 10390: 10389: 10385: 10376: 10374: 10370: 10363: 10359: 10358: 10354: 10344: 10342: 10329: 10328: 10321: 10312: 10310: 10306: 10295: 10291: 10290: 10286: 10277: 10275: 10262: 10261: 10257: 10247: 10245: 10234: 10230: 10220: 10218: 10203: 10199: 10190: 10188: 10175: 10174: 10167: 10157: 10155: 10151: 10144: 10140: 10139: 10135: 10126: 10124: 10120: 10109: 10105: 10104: 10100: 10091: 10089: 10080: 10079: 10075: 10065: 10063: 10050: 10049: 10045: 10035: 10033: 10029: 10022: 10018: 10017: 10013: 10004: 10002: 9997: 9996: 9992: 9983: 9981: 9977: 9970: 9966: 9965: 9961: 9952: 9950: 9937: 9936: 9932: 9923: 9921: 9917: 9911:Western Digital 9906: 9902: 9901: 9897: 9888: 9886: 9882: 9875: 9871: 9870: 9843: 9833: 9831: 9822: 9821: 9817: 9808: 9806: 9791: 9787: 9778: 9776: 9767: 9766: 9762: 9753: 9751: 9738: 9737: 9726: 9717: 9715: 9702: 9701: 9697: 9688: 9686: 9677: 9676: 9665: 9656: 9654: 9645: 9644: 9640: 9626: 9624: 9609: 9602: 9589: 9587: 9583: 9576: 9568: 9561: 9552: 9550: 9541: 9540: 9536: 9527: 9525: 9510: 9506: 9497: 9495: 9480: 9476: 9467: 9465: 9450: 9446: 9437: 9435: 9426: 9425: 9421: 9412: 9410: 9401: 9400: 9396: 9387: 9385: 9376: 9375: 9371: 9362: 9360: 9351: 9350: 9346: 9337: 9335: 9326: 9325: 9321: 9312: 9310: 9291: 9290: 9286: 9276: 9274: 9270: 9263: 9259: 9258: 9254: 9245: 9243: 9228: 9224: 9215: 9213: 9209: 9202: 9198: 9197: 9190: 9181: 9179: 9168: 9164: 9155: 9153: 9149: 9142: 9138: 9137: 9130: 9121: 9119: 9111: 9110: 9106: 9097: 9095: 9082: 9081: 9077: 9068: 9066: 9053: 9052: 9048: 9039: 9037: 9024: 9023: 9019: 9009: 9007: 8994: 8993: 8986: 8977: 8975: 8962: 8961: 8957: 8948: 8946: 8933: 8932: 8928: 8919: 8917: 8904: 8903: 8899: 8890: 8888: 8875: 8874: 8870: 8864:Wayback Machine 8855: 8851: 8847:SD Association. 8845:Wayback Machine 8836: 8829: 8823:Wayback Machine 8814: 8810: 8805:Wayback Machine 8795: 8791: 8782: 8780: 8767: 8766: 8757: 8748: 8746: 8733: 8732: 8728: 8719: 8717: 8708: 8707: 8703: 8694: 8692: 8683: 8682: 8675: 8666: 8664: 8655: 8654: 8647: 8630: 8629: 8625: 8615: 8613: 8608:. 15 May 2019. 8600: 8599: 8595: 8586: 8584: 8573: 8569: 8560: 8558: 8543: 8539: 8530: 8528: 8519:Shilov, Anton. 8517: 8513: 8504: 8502: 8487: 8483: 8474: 8472: 8463: 8462: 8458: 8449: 8447: 8432: 8428: 8419: 8417: 8408: 8407: 8403: 8388: 8384: 8374: 8372: 8363: 8362: 8358: 8349: 8347: 8336: 8332: 8323: 8321: 8310: 8306: 8297: 8295: 8286: 8285: 8281: 8272: 8270: 8261: 8260: 8253: 8245: 8243: 8230: 8229: 8225: 8216: 8214: 8201: 8200: 8196: 8187: 8185: 8176: 8175: 8171: 8162: 8160: 8149: 8145: 8136: 8134: 8121: 8120: 8116: 8107: 8105: 8092: 8091: 8087: 8078: 8076: 8063: 8062: 8058: 8049: 8047: 8032: 8028: 8019: 8017: 8002: 7998: 7989: 7987: 7972: 7968: 7959: 7957: 7948: 7947: 7943: 7934: 7932: 7919: 7918: 7914: 7905: 7903: 7888: 7884: 7875: 7873: 7864: 7863: 7859: 7850: 7848: 7835: 7834: 7830: 7820: 7818: 7814: 7803: 7799: 7798: 7794: 7788:Wayback Machine 7779: 7775: 7766: 7764: 7751: 7750: 7746: 7737: 7735: 7726: 7725: 7718: 7709: 7707: 7698: 7697: 7693: 7684: 7682: 7669: 7668: 7664: 7654: 7652: 7635: 7631: 7621: 7619: 7606: 7605: 7601: 7595:Wayback Machine 7586: 7582: 7573: 7572: 7568: 7557: 7553: 7542: 7538: 7529: 7527: 7518: 7517: 7513: 7505: 7503: 7496: 7495: 7491: 7482: 7480: 7471: 7470: 7466: 7457: 7455: 7445: 7441: 7432: 7430: 7421: 7420: 7416: 7407: 7405: 7396: 7395: 7391: 7382: 7380: 7371: 7370: 7366: 7357: 7355: 7346: 7345: 7341: 7332: 7330: 7321: 7320: 7316: 7307: 7305: 7292: 7291: 7284: 7275: 7273: 7260: 7259: 7252: 7247: 7242: 7241: 7236: 7225: 7216: 7207: 7202: 7198: 7193: 7189: 7184: 7180: 7171: 7154: 7149: 7145: 7140: 7125: 7120: 7116: 7111: 7078: 7069: 6950: 6939: 6933: 6930: 6887: 6885: 6875: 6863: 6852: 6844: 6809: 6798: 6792: 6789: 6746: 6744: 6734: 6722: 6711: 6702: 6680: 6672: 6652: 6639: 6423: 6419: 6415: 6411: 6409: 6405: 6403: 6399: 6397: 6392: 6369: 6353: 6344: 6340: 6299:Defragmentation 6288: 6158: 6147: 6141: 6138: 6095: 6093: 6083: 6071: 6060: 6037: 6003: 5962: 5844: 5839: 5834: 5829: 5680: 5675: 5612: 5607: 5602: 5597: 5503: 5498: 5493: 5488: 5339: 5334: 5309: 5269: 5264: 5259: 5254: 5160: 5155: 5150: 5145: 4932: 4927: 4922: 4917: 4893:(Ground) pins. 4892: 4841: 4830: 4824: 4821: 4778: 4776: 4766: 4754: 4743: 4731: 4727: 4726: 4721: 4717: 4716: 4711: 4707: 4706: 4704: 4695: 4683: 4679: 4678: 4673: 4669: 4668: 4663: 4659: 4658: 4656: 4650: 4633: 4629: 4628: 4623: 4619: 4618: 4613: 4609: 4606: 4604: 4602: 4594: 4590: 4589: 4584: 4580: 4579: 4574: 4570: 4567: 4565: 4563: 4549: 4536: 4525: 4519: 4516: 4473: 4471: 4461: 4449: 4438: 4433: 4432: 4431: 4430: 4429: 4420: 4419: 4418: 4409: 4408: 4398: 4387: 4381: 4378: 4335: 4333: 4323: 4311: 4300: 4272: 4260: 4198: 4171:Mac OS Extended 4117: 4089: 4087:Digital cameras 4023: 3922:bricked devices 3918:video recording 3891: 3859:digital cameras 3851:Nintendo Switch 3843: 3805:In non-UHS mode 3799:In non-UHS mode 3796:In non-UHS mode 3785:In non-UHS mode 3779:In non-UHS mode 3753:In non-UHS mode 3750:In non-UHS mode 3733:In non-UHS mode 3692: 3684: 3674: 3671: 3598: 3592: 3541:digital cameras 3529:barcode readers 3493: 3482: 3476: 3473: 3430: 3428: 3418: 3406: 3395: 3324:their pictures. 3302:Transcend Wi-Fi 3269: 3268: 3267: 3266: 3265: 3262: 3254: 3253: 3250: 3241: 3240: 3239: 3236: 3228: 3227: 3224: 3213: 3195:partnered with 3163:Bank of America 3148:mobile identity 3144:Good Technology 3133:mobile payments 3127:, a pioneer in 3106: 3089:Windows Phone 7 3070: 3059: 3053: 3050: 3007: 3005: 2995: 2983: 2972: 2930: 2919: 2913: 2910: 2867: 2865: 2855: 2843: 2832: 2824: 2819: 2814: 2749:Digital cameras 2740: 2643: 2638: 2629: 2623: 2609: 2601: 2596: 2581: 2571: 2570: 2562: 2557: 2538: 2531:Minimum random 2509: 2498: 2485: 2478: 2465: 2455: 2445: 2432: 2425: 2415: 2405: 2394: 2389: 2379: 2369: 2358: 2351: 2350: 2340: 2329: 2322: 2321: 2296: 2285: 2275: 2274: 2225: 2220: 2211: 2210: 2209: 2208: 2203: 2195:Type B card by 2185: 2184: 2183: 2174: 2173: 2172: 2161: 2152: 2133: 2118:UHS Speed Grade 2109:UHS Speed Class 2105: 2103:UHS Speed Class 2087: 2047: 2015: 1987: 1959: 1929: 1896: 1885: 1879: 1873: 1867: 1861: 1854: 1812: 1809: 1799: 1785: 1773: 1764: 1757: 1746: 1745: 1737: 1720: 1719: 1712: 1701: 1700: 1678: 1677: 1662: 1661: 1639: 1638: 1623: 1622: 1609: 1602: 1601: 1579: 1578: 1573: 1543: 1542: 1534: 1482: 1473: 1471:microSD Express 1432: 1423: 1403: 1381: 1359: 1351: 1343: 1338: 1306: 1246: 1240: 1226: 1222: 1215: 1183: 1179: 1172: 1135: 1131: 1124: 1064: 1053: 1042: 1036: 1033: 990: 988: 978: 966: 955: 790: 778:Western Digital 776:In April 2024, 771: 734:Western Digital 698:In early 2011, 661:Memory Stick XC 618: 616:2009–2019: SDXC 603: 599: 596: 594: 583: 560: 535: 458: 453: 438:MultiMediaCards 395:digital cameras 345: 331: 326: 317: 305: 290: 286: 275: 264: 238: 216: 210: 204: 161: 149: 143: 138: 134: 125: 121: 112: 108: 99: 74: 52: 48: 41: 35: 28: 23: 22: 15: 12: 11: 5: 12700: 12690: 12689: 12684: 12679: 12662: 12661: 12659: 12658: 12653: 12648: 12642: 12637: 12631: 12628:Secure Digital 12625: 12619: 12609: 12604: 12599: 12593: 12588: 12582: 12579:MultiMediaCard 12576: 12571: 12566: 12561: 12554: 12552: 12548: 12547: 12540: 12538: 12536: 12535: 12530: 12524: 12522: 12518: 12517: 12510: 12509: 12502: 12495: 12487: 12481: 12480: 12479: 12478: 12468: 12460: 12452: 12446: 12445: 12444: 12439: 12427: 12426:External links 12424: 12421: 12420: 12394: 12376:team, ACELab. 12368: 12343: 12311: 12292: 12267: 12242: 12214: 12186: 12153: 12127: 12100: 12078: 12053: 12028: 12001: 11980: 11949: 11924: 11899: 11874: 11849: 11823: 11798: 11773: 11748: 11729: 11704: 11679: 11654: 11628: 11602: 11572: 11555:SD Association 11542: 11517: 11486: 11456: 11442:. 2020-07-23. 11427: 11402: 11377: 11364:, 2005-07-25, 11345: 11320: 11294: 11269: 11239: 11208: 11178: 11153: 11128: 11097: 11071: 11046: 11015: 10989: 10958: 10933: 10908: 10877: 10847: 10817: 10787: 10757: 10726: 10695: 10665: 10636: 10607: 10589: 10564: 10539: 10510: 10479: 10443: 10427:SD Association 10414: 10383: 10352: 10319: 10300:SD Association 10284: 10255: 10228: 10197: 10183:. 2023-10-27. 10181:www.sdcard.org 10165: 10133: 10098: 10073: 10043: 10011: 9990: 9959: 9930: 9895: 9841: 9828:SD Association 9815: 9785: 9760: 9724: 9695: 9663: 9638: 9600: 9559: 9545:. Sdcard.org. 9534: 9504: 9474: 9444: 9419: 9394: 9369: 9344: 9319: 9302:Microsoft Docs 9284: 9252: 9222: 9188: 9174:. Anand Tech. 9162: 9128: 9104: 9075: 9046: 9017: 9000:SD Association 8984: 8968:SD Association 8955: 8926: 8897: 8868: 8849: 8827: 8808: 8789: 8775:. 2020-12-11. 8755: 8726: 8701: 8673: 8645: 8623: 8593: 8567: 8537: 8511: 8481: 8456: 8426: 8401: 8382: 8356: 8330: 8304: 8279: 8251: 8238:, 2011-05-26, 8223: 8194: 8169: 8143: 8114: 8085: 8056: 8026: 7996: 7966: 7941: 7927:. 2009-03-06. 7912: 7882: 7857: 7843:. 2020-12-11. 7828: 7792: 7773: 7744: 7716: 7691: 7662: 7629: 7599: 7580: 7566: 7551: 7536: 7511: 7489: 7464: 7439: 7414: 7389: 7364: 7339: 7314: 7282: 7249: 7248: 7246: 7243: 7240: 7239: 7223: 7205: 7196: 7187: 7178: 7152: 7143: 7123: 7113: 7112: 7110: 7107: 7106: 7105: 7100: 7094: 7089: 7084: 7077: 7074: 7068: 7065: 6952: 6951: 6934:September 2023 6866: 6864: 6857: 6851: 6848: 6830: 6826: 6825: 6821: 6811: 6810: 6793:September 2023 6725: 6723: 6716: 6710: 6707: 6684: 6679: 6676: 6671: 6668: 6651: 6648: 6638: 6635: 6632: 6631: 6628: 6625: 6622: 6619: 6616: 6613: 6609: 6608: 6605: 6602: 6599: 6596: 6593: 6590: 6586: 6585: 6582: 6579: 6576: 6573: 6570: 6567: 6563: 6562: 6559: 6556: 6553: 6550: 6547: 6544: 6540: 6539: 6536: 6533: 6530: 6527: 6524: 6521: 6517: 6516: 6513: 6510: 6507: 6504: 6501: 6498: 6494: 6493: 6490: 6487: 6484: 6481: 6478: 6475: 6471: 6470: 6467: 6464: 6461: 6458: 6455: 6452: 6448: 6447: 6444: 6441: 6438: 6435: 6432: 6429: 6425: 6424: 6420: 6416: 6412: 6406: 6400: 6394: 6368: 6365: 6352: 6349: 6293:" or Windows' 6281: 6280: 6270: 6269: 6268: 6254: 6237: 6236: 6235: 6221: 6203: 6166:MBR partitions 6160: 6159: 6142:September 2023 6074: 6072: 6065: 6059: 6056: 6036: 6033: 6029:MultiMediaCard 6025: 6024: 6021: 6018: 6002: 5999: 5961: 5958: 5957: 5956: 5945: 5934: 5925: 5924: 5921: 5918: 5915: 5912: 5909: 5906: 5903: 5899: 5898: 5895: 5892: 5889: 5886: 5883: 5880: 5877: 5873: 5872: 5869: 5866: 5863: 5860: 5857: 5854: 5851: 5847: 5846: 5841: 5836: 5831: 5826: 5823: 5820: 5817: 5813: 5812: 5809: 5806: 5803: 5800: 5797: 5794: 5791: 5787: 5786: 5783: 5780: 5777: 5774: 5771: 5768: 5765: 5761: 5760: 5757: 5754: 5751: 5748: 5745: 5742: 5739: 5735: 5734: 5731: 5728: 5725: 5722: 5719: 5716: 5713: 5709: 5708: 5705: 5702: 5699: 5696: 5693: 5690: 5687: 5683: 5682: 5677: 5672: 5669: 5666: 5663: 5660: 5657: 5653: 5652: 5649: 5646: 5643: 5640: 5637: 5634: 5631: 5627: 5626: 5623: 5620: 5617: 5614: 5609: 5604: 5599: 5584: 5583: 5580: 5577: 5574: 5571: 5568: 5565: 5562: 5558: 5557: 5554: 5551: 5548: 5545: 5542: 5539: 5536: 5532: 5531: 5528: 5525: 5522: 5519: 5516: 5513: 5510: 5506: 5505: 5500: 5495: 5490: 5485: 5482: 5479: 5476: 5472: 5471: 5468: 5465: 5462: 5459: 5456: 5453: 5450: 5446: 5445: 5442: 5439: 5436: 5433: 5430: 5427: 5424: 5420: 5419: 5416: 5413: 5410: 5407: 5404: 5401: 5398: 5394: 5393: 5390: 5387: 5384: 5381: 5378: 5375: 5372: 5368: 5367: 5364: 5361: 5358: 5355: 5352: 5349: 5346: 5342: 5341: 5336: 5331: 5328: 5325: 5322: 5319: 5316: 5312: 5311: 5306: 5303: 5300: 5297: 5294: 5291: 5288: 5284: 5283: 5280: 5277: 5274: 5271: 5266: 5261: 5256: 5241: 5240: 5237: 5234: 5231: 5228: 5225: 5222: 5219: 5215: 5214: 5211: 5208: 5205: 5202: 5199: 5196: 5193: 5189: 5188: 5185: 5182: 5179: 5176: 5173: 5170: 5167: 5163: 5162: 5157: 5152: 5147: 5142: 5139: 5136: 5133: 5129: 5128: 5125: 5122: 5119: 5116: 5113: 5110: 5107: 5103: 5102: 5099: 5096: 5093: 5090: 5087: 5084: 5081: 5077: 5076: 5073: 5070: 5067: 5064: 5061: 5058: 5055: 5051: 5050: 5047: 5044: 5041: 5038: 5035: 5032: 5029: 5025: 5024: 5021: 5018: 5015: 5012: 5009: 5006: 5003: 4999: 4998: 4995: 4992: 4989: 4986: 4983: 4980: 4977: 4973: 4972: 4969: 4966: 4963: 4960: 4957: 4954: 4951: 4947: 4946: 4943: 4940: 4937: 4934: 4929: 4924: 4919: 4890: 4887: 4886: 4876: 4869: 4863: 4843: 4842: 4825:September 2023 4757: 4755: 4748: 4742: 4741:Transfer modes 4739: 4738: 4737: 4702: 4694: 4691: 4690: 4689: 4654: 4649: 4646: 4645: 4644: 4600: 4561: 4548: 4545: 4538: 4537: 4520:September 2023 4452: 4450: 4443: 4437: 4434: 4423: 4422: 4421: 4412: 4411: 4410: 4406: 4405: 4404: 4403: 4400: 4399: 4382:September 2023 4314: 4312: 4305: 4299: 4296: 4271: 4268: 4259:achieved only 4197: 4194: 4119:Although many 4116: 4113: 4088: 4085: 4022: 4019: 3978:, ExpressBus, 3957:Windows Mobile 3890: 3887: 3875:action cameras 3842: 3839: 3836: 3835: 3832: 3829: 3826: 3823: 3820: 3817: 3813: 3812: 3809: 3806: 3803: 3800: 3797: 3794: 3790: 3789: 3786: 3783: 3780: 3777: 3774: 3771: 3767: 3766: 3763: 3760: 3757: 3754: 3751: 3748: 3744: 3743: 3740: 3737: 3734: 3731: 3728: 3725: 3721: 3720: 3717: 3714: 3711: 3708: 3705: 3702: 3698: 3697: 3694: 3689: 3686: 3681: 3678: 3675: 3672: 3669: 3661: 3660: 3657: 3654: 3643: 3640: 3625: 3591: 3588: 3495: 3494: 3477:September 2023 3409: 3407: 3400: 3394: 3391: 3390: 3389: 3379: 3373: 3362:OCZ Technology 3340: 3325: 3320:. Some models 3318:LZeal ez Share 3263: 3256: 3255: 3251: 3244: 3243: 3242: 3237: 3230: 3229: 3225: 3218: 3217: 3216: 3215: 3214: 3212: 3209: 3152:access control 3110:secure element 3105: 3102: 3072: 3071: 3054:September 2023 2986: 2984: 2977: 2971: 2968: 2932: 2931: 2914:September 2023 2846: 2844: 2837: 2831: 2828: 2823: 2820: 2818: 2815: 2813: 2810: 2795:use common in 2789:digital camera 2781: 2780: 2770: 2760: 2739: 2736: 2710: 2709: 2701: 2698: 2694: 2693: 2685: 2682: 2678: 2677: 2669: 2666: 2662: 2661: 2653: 2650: 2646: 2645: 2640: 2635: 2625:Main article: 2622: 2619: 2616: 2615: 2607: 2599: 2588: 2587: 2579: 2568: 2560: 2549: 2548: 2545: 2541: 2540: 2535: 2529: 2508: 2505: 2502: 2501: 2499:Class 90 (V90) 2491: 2488: 2482: 2481: 2479:Class 60 (V60) 2471: 2468: 2462: 2461: 2458: 2456:Class 30 (V30) 2448: 2438: 2435: 2429: 2428: 2426:Class 10 (V10) 2418: 2408: 2406:Class 10 (C10) 2398: 2392: 2386: 2385: 2382: 2372: 2362: 2356: 2347: 2346: 2343: 2333: 2327: 2318: 2317: 2314: 2311: 2308: 2305: 2302: 2299: 2289: 2283: 2271: 2270: 2265: 2260: 2251: 2246: 2243: 2240: 2236: 2235: 2230: 2227: 2222: 2221:writing speed 2191:A 128 GB 2187: 2186: 2177: 2176: 2175: 2166: 2165: 2164: 2163: 2162: 2160: 2157: 2151: 2148: 2140:MLC NAND flash 2132: 2129: 2104: 2101: 2086: 2083: 2075:SD Association 2046: 2043: 2037: 2036: 2031: 2028: 2025: 2022: 2019: 2013: 2009: 2008: 2005: 2000: 1997: 1994: 1991: 1985: 1981: 1980: 1977: 1974: 1969: 1966: 1963: 1957: 1951: 1950: 1947: 1944: 1941: 1936: 1933: 1927: 1922: 1918: 1917: 1914: 1911: 1908: 1905: 1900: 1894: 1890: 1889: 1883: 1877: 1871: 1865: 1859: 1851: 1848: 1844: 1843: 1838: 1833: 1830: 1826: 1825: 1822: 1819: 1816: 1813: 1810: 1807: 1798: 1795: 1792: 1791: 1788: 1782: 1781: 1777: 1776: 1770: 1767: 1761: 1760: 1754: 1751: 1743: 1730: 1726: 1725: 1716: 1715: 1709: 1706: 1698: 1691: 1687: 1686: 1683: 1674: 1673: 1670: 1667: 1659: 1652: 1648: 1647: 1644: 1636: 1632: 1631: 1628: 1619: 1618: 1615: 1612: 1607: 1599: 1592: 1588: 1587: 1584: 1576: 1570: 1569: 1566: 1563: 1560: 1557: 1554: 1551: 1548: 1540: 1537: 1531: 1530: 1527: 1524: 1521: 1517: 1516: 1513: 1510: 1505: 1497: 1494: 1491: 1490:Bus interface 1481: 1478: 1472: 1469: 1431: 1428: 1422: 1419: 1402: 1399: 1380: 1377: 1358: 1355: 1350: 1347: 1342: 1339: 1337: 1334: 1305: 1302: 1242:Main article: 1239: 1236: 1214: 1211: 1171: 1168: 1123: 1120: 1116: 1115: 1112: 1101: 1098: 1091: 1088: 1080: 1073:MultiMediaCard 1055: 1054: 1037:September 2023 969: 967: 960: 954: 951: 948: 947: 942: 937: 928: 921: 920: 917: 914: 911: 908: 904: 903: 900: 897: 894: 891: 888: 884: 883: 880: 877: 874: 871: 867: 866: 859: 852: 845: 838: 834: 833: 830: 827: 824: 821: 789: 786: 770: 767: 617: 614: 582: 579: 559: 556: 545:At March 2003 534: 531: 519:SD Association 486:memory density 474:MultiMediaCard 457: 454: 452: 449: 445:SD Association 411:action cameras 388:SD Association 368:Secure Digital 363: 362: 359: 355: 354: 352:MultiMediaCard 349: 341: 340: 337: 333: 332: 330: 329: 320: 311: 298: 296: 292: 291: 289: 288: 283: 277: 272: 266: 261: 254: 252: 248: 247: 245:SD Association 242: 234: 233: 230: 224: 223: 220: 212: 211: 209: 208: 198: 192: 186: 180: 179:: 25 MB/s 174: 167: 165: 157: 156: 153: 145: 144: 142: 141: 128: 115: 102: 92: 90: 86: 85: 80: 76: 75: 72: 64: 63: 51:Secure Digital 45:MultiMediaCard 26: 9: 6: 4: 3: 2: 12699: 12688: 12685: 12683: 12680: 12678: 12675: 12674: 12672: 12657: 12654: 12652: 12649: 12646: 12643: 12641: 12638: 12635: 12632: 12629: 12626: 12623: 12620: 12617: 12613: 12610: 12608: 12605: 12603: 12600: 12597: 12594: 12592: 12589: 12586: 12583: 12580: 12577: 12575: 12572: 12570: 12567: 12565: 12562: 12559: 12556: 12555: 12553: 12549: 12544: 12534: 12531: 12529: 12526: 12525: 12523: 12521:Main articles 12519: 12515: 12508: 12503: 12501: 12496: 12494: 12489: 12488: 12485: 12477: 12474: 12473: 12472: 12469: 12467: 12464: 12461: 12459: 12456: 12453: 12450: 12447: 12443: 12440: 12438: 12435: 12434: 12433: 12430: 12429: 12413:September 11, 12408: 12404: 12398: 12383: 12379: 12372: 12358:on 2011-04-12 12357: 12353: 12347: 12328: 12321: 12315: 12308: 12304: 12301: 12296: 12281: 12277: 12271: 12257:on 2012-07-30 12256: 12252: 12246: 12231: 12227: 12226: 12218: 12205:on 2008-02-04 12204: 12200: 12196: 12190: 12173: 12166: 12165: 12157: 12150:on 2013-02-07 12146: 12139: 12138: 12131: 12118:on 2013-08-18 12117: 12113: 12112: 12104: 12097: 12093: 12090: 12085: 12083: 12067: 12063: 12057: 12042: 12038: 12032: 12017: 12013: 12012: 12005: 11997: 11991: 11989: 11987: 11985: 11970:on 2013-12-02 11966: 11959: 11953: 11938: 11934: 11928: 11913: 11909: 11903: 11888: 11884: 11878: 11863: 11859: 11858:"Embedded SD" 11853: 11837: 11833: 11827: 11812: 11808: 11802: 11788:on 2015-02-15 11787: 11783: 11777: 11762: 11758: 11752: 11745: 11741: 11738: 11733: 11718: 11714: 11708: 11693: 11689: 11683: 11668: 11665:(in German). 11664: 11658: 11643: 11639: 11632: 11618:on 2013-06-23 11617: 11613: 11606: 11591: 11587: 11583: 11576: 11560: 11556: 11552: 11546: 11531: 11527: 11521: 11505: 11501: 11497: 11490: 11474: 11470: 11466: 11460: 11445: 11441: 11437: 11431: 11417:on 2015-04-15 11416: 11412: 11406: 11391: 11387: 11381: 11367: 11363: 11359: 11355: 11349: 11334: 11330: 11324: 11309: 11305: 11304:"AudioHolics" 11298: 11284:on 2010-08-26 11283: 11279: 11273: 11257: 11253: 11249: 11243: 11227: 11223: 11219: 11212: 11196: 11192: 11188: 11182: 11167: 11163: 11157: 11143:on 2017-02-02 11142: 11138: 11132: 11116: 11112: 11108: 11101: 11085: 11081: 11075: 11061:on 2020-10-14 11060: 11056: 11050: 11034: 11030: 11026: 11019: 11003: 10999: 10993: 10977: 10973: 10969: 10962: 10947: 10944:. NFC Times. 10943: 10937: 10922: 10918: 10912: 10896: 10892: 10888: 10881: 10865: 10861: 10857: 10851: 10835: 10831: 10827: 10821: 10805: 10801: 10797: 10791: 10775: 10771: 10767: 10761: 10745: 10741: 10737: 10730: 10716:on 2016-12-23 10712: 10705: 10699: 10683: 10679: 10675: 10669: 10654: 10650: 10646: 10640: 10625: 10621: 10617: 10611: 10599: 10593: 10579: 10575: 10568: 10554:on 2017-07-02 10553: 10549: 10543: 10528: 10524: 10520: 10514: 10498: 10494: 10490: 10483: 10465: 10461: 10454: 10447: 10432: 10428: 10424: 10423:"Speed Class" 10418: 10400: 10393: 10387: 10373:on 2017-03-30 10369: 10362: 10356: 10340: 10336: 10332: 10326: 10324: 10309:on 2020-11-12 10305: 10301: 10294: 10288: 10273: 10269: 10265: 10259: 10243: 10239: 10232: 10216: 10212: 10208: 10201: 10186: 10182: 10178: 10172: 10170: 10150: 10143: 10137: 10119: 10115: 10108: 10102: 10087: 10083: 10077: 10061: 10058:. July 2018. 10057: 10053: 10047: 10028: 10021: 10015: 10000: 9994: 9980:on 2011-03-21 9976: 9969: 9963: 9948: 9944: 9943:Genesys Logic 9940: 9934: 9916: 9912: 9905: 9899: 9885:on 2013-12-05 9881: 9874: 9868: 9866: 9864: 9862: 9860: 9858: 9856: 9854: 9852: 9850: 9848: 9846: 9829: 9825: 9819: 9804: 9800: 9796: 9789: 9774: 9770: 9764: 9749: 9745: 9741: 9735: 9733: 9731: 9729: 9713: 9709: 9705: 9699: 9685:on 2020-12-21 9684: 9680: 9674: 9672: 9670: 9668: 9652: 9648: 9642: 9635: 9622: 9618: 9614: 9607: 9605: 9597: 9582: 9575: 9574: 9566: 9564: 9548: 9544: 9538: 9523: 9519: 9515: 9508: 9493: 9489: 9485: 9478: 9463: 9459: 9455: 9448: 9433: 9429: 9423: 9408: 9404: 9398: 9384:on 2015-05-11 9383: 9379: 9373: 9359:on 2012-05-13 9358: 9354: 9348: 9333: 9329: 9323: 9308: 9304: 9303: 9298: 9294: 9288: 9273:on 2020-11-12 9269: 9262: 9256: 9241: 9237: 9233: 9226: 9212:on 2016-12-23 9208: 9201: 9195: 9193: 9177: 9173: 9166: 9152:on 2016-03-07 9148: 9141: 9135: 9133: 9118: 9114: 9108: 9093: 9089: 9085: 9079: 9064: 9060: 9056: 9050: 9036:on 2021-04-10 9035: 9031: 9027: 9021: 9005: 9001: 8997: 8991: 8989: 8973: 8969: 8965: 8959: 8944: 8940: 8936: 8930: 8915: 8911: 8907: 8901: 8886: 8882: 8878: 8872: 8865: 8861: 8858: 8853: 8846: 8842: 8839: 8834: 8832: 8824: 8820: 8817: 8812: 8806: 8802: 8798: 8793: 8778: 8774: 8770: 8764: 8762: 8760: 8744: 8740: 8736: 8730: 8715: 8711: 8705: 8691:on 2014-10-10 8690: 8686: 8680: 8678: 8662: 8658: 8652: 8650: 8641: 8637: 8633: 8627: 8611: 8607: 8603: 8597: 8582: 8578: 8571: 8556: 8552: 8548: 8541: 8526: 8522: 8515: 8500: 8496: 8492: 8485: 8470: 8466: 8460: 8445: 8441: 8437: 8430: 8415: 8411: 8405: 8397: 8393: 8386: 8370: 8366: 8360: 8345: 8341: 8334: 8319: 8315: 8308: 8293: 8289: 8283: 8269:on 2013-05-26 8268: 8264: 8258: 8256: 8241: 8237: 8233: 8227: 8212: 8208: 8204: 8198: 8183: 8179: 8173: 8158: 8154: 8147: 8133:on 2011-11-13 8132: 8128: 8124: 8118: 8104:on 2010-04-21 8103: 8099: 8095: 8089: 8075:on 2010-07-01 8074: 8070: 8066: 8060: 8046:on 2010-11-25 8045: 8041: 8037: 8030: 8016:on 2015-01-01 8015: 8011: 8007: 8000: 7986:on 2007-06-11 7985: 7981: 7977: 7970: 7955: 7951: 7945: 7930: 7926: 7922: 7916: 7901: 7897: 7893: 7886: 7871: 7867: 7861: 7846: 7842: 7838: 7832: 7813: 7809: 7802: 7796: 7789: 7785: 7782: 7777: 7762: 7758: 7754: 7748: 7733: 7729: 7723: 7721: 7705: 7701: 7695: 7680: 7676: 7672: 7666: 7650: 7646: 7645: 7640: 7633: 7617: 7613: 7609: 7603: 7596: 7592: 7589: 7584: 7576: 7570: 7562: 7555: 7547: 7540: 7525: 7521: 7515: 7501: 7500: 7493: 7478: 7474: 7468: 7454: 7450: 7443: 7428: 7425:. DP review. 7424: 7418: 7404:on 2021-10-29 7403: 7399: 7393: 7378: 7374: 7368: 7353: 7349: 7343: 7328: 7324: 7318: 7304:on 2020-10-28 7303: 7299: 7295: 7289: 7287: 7271: 7267: 7263: 7257: 7255: 7250: 7234: 7232: 7230: 7228: 7220: 7214: 7212: 7210: 7203:1 KB = 1024 B 7200: 7191: 7182: 7175: 7169: 7167: 7165: 7163: 7161: 7159: 7157: 7147: 7138: 7136: 7134: 7132: 7130: 7128: 7118: 7114: 7104: 7101: 7098: 7095: 7093: 7090: 7088: 7085: 7083: 7080: 7079: 7073: 7067:Data recovery 7062: 7058: 7054: 7049: 7045: 7043: 7038: 7035: 7031: 7027: 7023: 7018: 7016: 7012: 7007: 7004: 7002: 6997: 6994: 6990: 6986: 6981: 6979: 6975: 6971: 6967: 6958: 6948: 6945: 6937: 6926: 6923: 6919: 6916: 6912: 6909: 6905: 6902: 6898: 6895: – 6894: 6890: 6889:Find sources: 6883: 6879: 6873: 6872: 6867:This section 6865: 6861: 6856: 6855: 6847: 6842: 6838: 6834: 6829: 6822: 6819: 6818: 6817: 6807: 6804: 6796: 6785: 6782: 6778: 6775: 6771: 6768: 6764: 6761: 6757: 6754: – 6753: 6749: 6748:Find sources: 6742: 6738: 6732: 6731: 6726:This section 6724: 6720: 6715: 6714: 6706: 6700: 6696: 6693:≤ 4095, 0 ≤ 6692: 6688: 6683: 6675: 6667: 6663: 6656: 6647: 6643: 6629: 6626: 6623: 6620: 6617: 6614: 6612:Default Speed 6611: 6610: 6606: 6603: 6600: 6597: 6594: 6591: 6588: 6587: 6583: 6580: 6577: 6574: 6571: 6568: 6565: 6564: 6560: 6557: 6554: 6551: 6548: 6545: 6542: 6541: 6537: 6534: 6531: 6528: 6525: 6522: 6519: 6518: 6514: 6511: 6508: 6505: 6502: 6499: 6496: 6495: 6491: 6488: 6485: 6482: 6479: 6476: 6473: 6472: 6468: 6465: 6462: 6459: 6456: 6453: 6450: 6449: 6445: 6442: 6439: 6436: 6433: 6430: 6427: 6426: 6421: 6417: 6413: 6407: 6401: 6395: 6390: 6389: 6383: 6380: 6377: 6372: 6364: 6360: 6358: 6357:wear leveling 6348: 6338: 6335: 6331: 6326: 6324: 6320: 6316: 6312: 6307: 6305: 6300: 6296: 6291: 6285: 6279: 6275: 6271: 6267: 6263: 6259: 6255: 6253: 6249: 6245: 6241: 6240: 6238: 6234: 6230: 6226: 6222: 6220: 6216: 6212: 6208: 6204: 6202: 6198: 6194: 6190: 6186: 6185: 6183: 6182: 6181: 6179: 6175: 6171: 6167: 6156: 6153: 6145: 6134: 6131: 6127: 6124: 6120: 6117: 6113: 6110: 6106: 6103: – 6102: 6098: 6097:Find sources: 6091: 6087: 6081: 6080: 6075:This section 6073: 6069: 6064: 6063: 6055: 6053: 6048: 6044: 6042: 6032: 6030: 6022: 6019: 6016: 6015: 6014: 6011: 6008: 5994: 5987: 5982: 5975: 5974:SD controller 5971: 5966: 5954: 5950: 5946: 5943: 5939: 5935: 5932: 5931: 5930: 5922: 5919: 5916: 5913: 5910: 5907: 5904: 5901: 5900: 5896: 5893: 5890: 5887: 5884: 5881: 5878: 5875: 5874: 5870: 5867: 5864: 5861: 5858: 5855: 5852: 5849: 5848: 5842: 5837: 5832: 5827: 5824: 5821: 5818: 5815: 5814: 5810: 5807: 5804: 5801: 5798: 5795: 5792: 5789: 5788: 5784: 5781: 5778: 5775: 5772: 5769: 5766: 5763: 5762: 5759:Serial clock 5758: 5755: 5752: 5749: 5746: 5743: 5740: 5737: 5736: 5732: 5729: 5726: 5723: 5720: 5717: 5714: 5711: 5710: 5706: 5703: 5700: 5697: 5694: 5691: 5688: 5685: 5684: 5678: 5673: 5670: 5667: 5664: 5661: 5658: 5655: 5654: 5650: 5647: 5644: 5641: 5638: 5635: 5632: 5629: 5628: 5624: 5621: 5618: 5615: 5610: 5605: 5600: 5596: 5593: 5592: 5581: 5578: 5575: 5572: 5569: 5566: 5563: 5560: 5559: 5555: 5552: 5549: 5546: 5543: 5540: 5537: 5534: 5533: 5529: 5526: 5523: 5520: 5517: 5514: 5511: 5508: 5507: 5501: 5496: 5491: 5486: 5483: 5480: 5477: 5474: 5473: 5469: 5466: 5463: 5460: 5457: 5454: 5451: 5448: 5447: 5443: 5440: 5437: 5434: 5431: 5428: 5425: 5422: 5421: 5418:Serial clock 5417: 5414: 5411: 5408: 5405: 5402: 5399: 5396: 5395: 5391: 5388: 5385: 5382: 5379: 5376: 5373: 5370: 5369: 5365: 5362: 5359: 5356: 5353: 5350: 5347: 5344: 5343: 5337: 5332: 5329: 5326: 5323: 5320: 5317: 5314: 5313: 5307: 5304: 5301: 5298: 5295: 5292: 5289: 5286: 5285: 5281: 5278: 5275: 5272: 5267: 5262: 5257: 5253: 5250: 5249: 5238: 5235: 5232: 5229: 5226: 5223: 5220: 5217: 5216: 5212: 5209: 5206: 5203: 5200: 5197: 5194: 5191: 5190: 5186: 5183: 5180: 5177: 5174: 5171: 5168: 5165: 5164: 5158: 5153: 5148: 5143: 5140: 5137: 5134: 5131: 5130: 5126: 5123: 5120: 5117: 5114: 5111: 5108: 5105: 5104: 5100: 5097: 5094: 5091: 5088: 5085: 5082: 5079: 5078: 5074: 5071: 5068: 5065: 5062: 5059: 5056: 5053: 5052: 5048: 5045: 5042: 5039: 5036: 5033: 5030: 5027: 5026: 5022: 5019: 5016: 5013: 5010: 5007: 5004: 5001: 5000: 4996: 4993: 4990: 4987: 4984: 4981: 4978: 4975: 4974: 4970: 4967: 4964: 4961: 4958: 4955: 4952: 4949: 4948: 4944: 4941: 4938: 4935: 4930: 4925: 4920: 4916: 4913: 4912: 4909:SPI bus mode 4903: 4898: 4894: 4884: 4880: 4877: 4873: 4870: 4867: 4864: 4861: 4857: 4854: 4853:SPI bus mode: 4851: 4850: 4849: 4839: 4836: 4828: 4817: 4814: 4810: 4807: 4803: 4800: 4796: 4793: 4789: 4786: – 4785: 4781: 4780:Find sources: 4774: 4770: 4764: 4763: 4758:This section 4756: 4752: 4747: 4746: 4703: 4700: 4699: 4698: 4655: 4652: 4651: 4642: 4601: 4562: 4559: 4558: 4553: 4544: 4534: 4531: 4523: 4512: 4509: 4505: 4502: 4498: 4495: 4491: 4488: 4484: 4481: – 4480: 4476: 4475:Find sources: 4469: 4465: 4459: 4458: 4453:This section 4451: 4447: 4442: 4441: 4436:Physical size 4427: 4416: 4396: 4393: 4385: 4374: 4371: 4367: 4364: 4360: 4357: 4353: 4350: 4346: 4343: – 4342: 4338: 4337:Find sources: 4331: 4327: 4321: 4320: 4315:This section 4313: 4309: 4304: 4303: 4295: 4293: 4289: 4285: 4281: 4277: 4267: 4266:throughput). 4264: 4258: 4254: 4250: 4246: 4243: 4239: 4235: 4231: 4227: 4222: 4220: 4211: 4208:) that gives 4207: 4206:daughterboard 4202: 4193: 4191: 4187: 4183: 4178: 4176: 4172: 4168: 4164: 4159: 4157: 4153: 4149: 4145: 4141: 4136: 4134: 4133:bootstrapping 4130: 4126: 4122: 4112: 4110: 4106: 4098: 4095:SD card in a 4093: 4084: 4082: 4078: 4074: 4070: 4065: 4063: 4056: 4052: 4047: 4040: 4036: 4031: 4027: 4018: 4016: 4012: 4008: 4003: 4001: 3997: 3993: 3989: 3985: 3981: 3977: 3972: 3970: 3964: 3962: 3958: 3953: 3951: 3948:. Due to the 3947: 3944:hosting over 3943: 3939: 3935: 3934:USB on the go 3931: 3927: 3923: 3919: 3915: 3911: 3910:network delay 3907: 3903: 3899: 3898:cloud storage 3894: 3889:Mobile phones 3886: 3884: 3883:camera drones 3880: 3876: 3872: 3871:mobile phones 3868: 3864: 3860: 3852: 3847: 3833: 3830: 3827: 3824: 3821: 3818: 3815: 3814: 3810: 3807: 3804: 3801: 3798: 3795: 3792: 3791: 3787: 3784: 3781: 3778: 3775: 3772: 3769: 3768: 3764: 3761: 3758: 3755: 3752: 3749: 3746: 3745: 3741: 3738: 3735: 3732: 3729: 3726: 3723: 3722: 3718: 3715: 3712: 3709: 3706: 3703: 3700: 3699: 3668: 3667: 3658: 3655: 3652: 3648: 3644: 3641: 3638: 3634: 3630: 3626: 3623: 3619: 3618: 3617: 3614: 3612: 3604: 3596: 3590:Compatibility 3587: 3585: 3581: 3576: 3574: 3570: 3564: 3560: 3558: 3554: 3550: 3546: 3542: 3538: 3534: 3530: 3526: 3522: 3518: 3508: 3501: 3491: 3488: 3480: 3469: 3466: 3462: 3459: 3455: 3452: 3448: 3445: 3441: 3438: – 3437: 3433: 3432:Find sources: 3426: 3422: 3416: 3415: 3410:This article 3408: 3404: 3399: 3398: 3387: 3386:Super Info SD 3383: 3380: 3377: 3374: 3371: 3367: 3363: 3359: 3355: 3351: 3348: 3344: 3341: 3337: 3333: 3329: 3326: 3323: 3319: 3315: 3311: 3307: 3303: 3299: 3295: 3291: 3290: 3285: 3284: 3283: 3278: 3273: 3260: 3248: 3234: 3222: 3208: 3206: 3202: 3198: 3194: 3189: 3187: 3182: 3180: 3176: 3172: 3168: 3164: 3160: 3155: 3153: 3149: 3145: 3140: 3138: 3134: 3130: 3126: 3121: 3119: 3115: 3111: 3104:smartSD cards 3101: 3099: 3095: 3090: 3086: 3078: 3068: 3065: 3057: 3046: 3043: 3039: 3036: 3032: 3029: 3025: 3022: 3018: 3015: – 3014: 3010: 3009:Find sources: 3003: 2999: 2993: 2992: 2987:This article 2985: 2981: 2976: 2975: 2970:Card password 2967: 2964: 2960: 2957: 2954: 2946: 2938: 2928: 2925: 2917: 2906: 2903: 2899: 2896: 2892: 2889: 2885: 2882: 2878: 2875: – 2874: 2870: 2869:Find sources: 2863: 2859: 2853: 2852: 2847:This section 2845: 2841: 2836: 2835: 2827: 2817:Card security 2809: 2806: 2802: 2798: 2794: 2793:random-access 2790: 2786: 2778: 2774: 2771: 2768: 2767:wear leveling 2764: 2761: 2758: 2757: 2756: 2752: 2750: 2746: 2735: 2733: 2729: 2725: 2721: 2717: 2706: 2702: 2699: 2696: 2695: 2690: 2686: 2683: 2680: 2679: 2674: 2670: 2667: 2664: 2663: 2658: 2654: 2651: 2648: 2647: 2632: 2628: 2613: 2608: 2605: 2600: 2594: 2589: 2585: 2577: 2569: 2566: 2561: 2555: 2550: 2546: 2543: 2542: 2534: 2526: 2520: 2517: 2513: 2496: 2492: 2489: 2483: 2476: 2472: 2469: 2463: 2453: 2449: 2443: 2436: 2430: 2423: 2419: 2413: 2409: 2403: 2393: 2387: 2377: 2373: 2367: 2363: 2357: 2348: 2338: 2334: 2328: 2319: 2309: 2294: 2290: 2284: 2281: 2272: 2269: 2264: 2259: 2255: 2250: 2237: 2234: 2226:max. bitrate 2217: 2206: 2202: 2198: 2194: 2190: 2181: 2170: 2156: 2147: 2145: 2141: 2137: 2128: 2126: 2121: 2119: 2115: 2110: 2100: 2097: 2093: 2091: 2082: 2079: 2076: 2067: 2059: 2051: 2042: 2035: 2032: 2029: 2026: 2023: 2020: 2014: 2010: 2006: 2004: 2001: 1998: 1995: 1992: 1986: 1982: 1978: 1975: 1973: 1970: 1967: 1964: 1958: 1953: 1952: 1948: 1945: 1942: 1940: 1937: 1934: 1928: 1923: 1919: 1915: 1912: 1909: 1906: 1904: 1901: 1895: 1892: 1891: 1884: 1878: 1872: 1866: 1860: 1858: 1852: 1849: 1845: 1839: 1834: 1831: 1828: 1827: 1805: 1797:Compatibility 1789: 1784: 1783: 1779: 1778: 1768: 1762: 1755: 1752: 1744: 1741: 1735: 1727: 1718: 1717: 1699: 1696: 1688: 1684: 1676: 1675: 1668: 1660: 1657: 1649: 1637: 1633: 1621: 1620: 1608: 1600: 1597: 1589: 1585: 1577: 1571: 1567: 1541: 1535:Default Speed 1532: 1518: 1515:Spec version 1509: 1504: 1501: 1488: 1477: 1468: 1465: 1462: 1459: 1457: 1452: 1449: 1445: 1436: 1427: 1418: 1416: 1407: 1398: 1394: 1391: 1387: 1376: 1373: 1371: 1366: 1362: 1354: 1346: 1341:Default Speed 1333: 1329: 1327: 1323: 1318: 1316: 1312: 1301: 1298: 1295: 1293: 1289: 1285: 1281: 1277: 1272: 1268: 1263: 1261: 1257: 1256:Windows Vista 1253: 1251: 1245: 1235: 1219: 1210: 1208: 1203: 1200: 1196: 1194: 1176: 1167: 1163: 1161: 1156: 1155:file system. 1154: 1150: 1144: 1128: 1119: 1113: 1110: 1106: 1102: 1099: 1096: 1092: 1089: 1086: 1081: 1078: 1077: 1076: 1074: 1061: 1051: 1048: 1040: 1029: 1026: 1022: 1019: 1015: 1012: 1008: 1005: 1001: 998: – 997: 993: 992:Find sources: 986: 982: 976: 975: 970:This section 968: 964: 959: 958: 946: 941: 938: 936: 932: 929: 922: 918: 915: 912: 909: 906: 905: 901: 898: 895: 892: 889: 885: 881: 878: 875: 872: 868: 864: 860: 857: 853: 850: 846: 843: 839: 835: 819: 813: 811: 807: 803: 799: 795: 785: 783: 779: 774: 766: 764: 760: 755: 753: 749: 744: 741: 739: 735: 730: 726: 724: 718: 716: 712: 707: 705: 701: 696: 694: 689: 687: 683: 679: 675: 671: 666: 662: 658: 654: 650: 646: 641: 639: 635: 631: 622: 613: 592: 587: 578: 575: 569: 564: 555: 552: 548: 539: 530: 528: 524: 520: 516: 511: 509: 505: 500: 498: 494: 489: 487: 483: 479: 475: 471: 467: 463: 448: 446: 441: 439: 435: 431: 427: 422: 420: 419:camera drones 416: 412: 408: 407:mobile phones 404: 400: 396: 391: 389: 385: 381: 377: 373: 369: 360: 356: 353: 350: 342: 338: 334: 324: 321: 315: 312: 309: 303: 300: 299: 297: 293: 284: 281: 278: 273: 270: 267: 262: 259: 256: 255: 253: 249: 246: 243: 235: 231: 229: 225: 221: 213: 202: 199: 196: 193: 190: 187: 184: 181: 178: 175: 172: 169: 168: 166: 158: 154: 146: 132: 129: 119: 116: 106: 103: 97: 94: 93: 91: 87: 84: 81: 77: 70: 65: 61: 56: 46: 40: 33: 19: 12585:Memory Stick 12569:Express Card 12558:CompactFlash 12514:Memory cards 12411:. Retrieved 12397: 12386:. Retrieved 12371: 12360:. Retrieved 12356:the original 12346: 12334:. Retrieved 12314: 12295: 12284:. Retrieved 12270: 12259:. Retrieved 12255:the original 12245: 12234:, retrieved 12224: 12217: 12207:, retrieved 12203:the original 12199:DRAMeXchange 12198: 12189: 12179:, retrieved 12163: 12156: 12145:the original 12136: 12130: 12120:, retrieved 12116:the original 12110: 12103: 12070:. Retrieved 12056: 12045:. Retrieved 12031: 12020:, retrieved 12010: 12004: 11995: 11972:. Retrieved 11965:the original 11952: 11941:. Retrieved 11927: 11916:. Retrieved 11902: 11891:. Retrieved 11877: 11866:. Retrieved 11852: 11840:. Retrieved 11826: 11815:. Retrieved 11801: 11790:. Retrieved 11786:the original 11776: 11765:. Retrieved 11751: 11732: 11721:. Retrieved 11707: 11696:. Retrieved 11682: 11671:. Retrieved 11657: 11646:. Retrieved 11631: 11620:. Retrieved 11616:the original 11605: 11594:. Retrieved 11585: 11575: 11563:. Retrieved 11554: 11545: 11534:. Retrieved 11520: 11508:. Retrieved 11499: 11489: 11477:. Retrieved 11468: 11459: 11448:. Retrieved 11439: 11430: 11419:. Retrieved 11415:the original 11405: 11394:. Retrieved 11380: 11370:, retrieved 11358:The Register 11357: 11348: 11337:. Retrieved 11323: 11312:. Retrieved 11297: 11286:. Retrieved 11282:the original 11272: 11260:. Retrieved 11251: 11242: 11230:. Retrieved 11221: 11211: 11199:. Retrieved 11195:the original 11191:koolspan.com 11190: 11181: 11170:. Retrieved 11156: 11145:. Retrieved 11141:the original 11131: 11119:. Retrieved 11110: 11100: 11088:. Retrieved 11084:the original 11074: 11063:. Retrieved 11059:the original 11049: 11037:. Retrieved 11028: 11018: 11006:. Retrieved 10992: 10980:. Retrieved 10972:SecureIDNews 10971: 10961: 10950:. Retrieved 10936: 10925:. Retrieved 10911: 10899:. Retrieved 10890: 10880: 10868:. Retrieved 10859: 10850: 10838:. Retrieved 10829: 10820: 10808:. Retrieved 10799: 10790: 10778:. Retrieved 10770:SecureIDNews 10769: 10760: 10748:. Retrieved 10739: 10729: 10718:. Retrieved 10711:the original 10698: 10686:. Retrieved 10677: 10668: 10657:. Retrieved 10648: 10639: 10628:. Retrieved 10619: 10610: 10592: 10581:. Retrieved 10577: 10567: 10556:. Retrieved 10552:the original 10542: 10531:. Retrieved 10522: 10513: 10501:. Retrieved 10492: 10482: 10471:. Retrieved 10459: 10446: 10435:. Retrieved 10426: 10417: 10406:. Retrieved 10386: 10375:. Retrieved 10368:the original 10355: 10343:. Retrieved 10334: 10311:. Retrieved 10304:the original 10299: 10287: 10276:. Retrieved 10267: 10258: 10246:. Retrieved 10231: 10219:. Retrieved 10210: 10200: 10189:. Retrieved 10180: 10156:. Retrieved 10136: 10125:. Retrieved 10113: 10101: 10090:. Retrieved 10076: 10064:. Retrieved 10055: 10046: 10034:. Retrieved 10027:the original 10014: 10003:. Retrieved 9993: 9982:. Retrieved 9975:the original 9962: 9951:. Retrieved 9942: 9933: 9922:. Retrieved 9910: 9898: 9887:. Retrieved 9880:the original 9832:. Retrieved 9827: 9818: 9807:. Retrieved 9798: 9788: 9777:. Retrieved 9763: 9752:. Retrieved 9743: 9716:. Retrieved 9707: 9698: 9687:. Retrieved 9683:the original 9655:. Retrieved 9641: 9632: 9625:. Retrieved 9616: 9594: 9588:, retrieved 9572: 9551:. Retrieved 9537: 9526:. Retrieved 9517: 9507: 9496:. Retrieved 9487: 9477: 9466:. Retrieved 9457: 9447: 9436:. Retrieved 9422: 9411:. Retrieved 9397: 9386:. Retrieved 9382:the original 9372: 9361:. Retrieved 9357:the original 9347: 9336:. Retrieved 9322: 9311:. Retrieved 9300: 9287: 9275:. Retrieved 9268:the original 9255: 9244:. Retrieved 9235: 9225: 9214:. Retrieved 9207:the original 9180:. Retrieved 9165: 9154:. Retrieved 9147:the original 9120:. Retrieved 9116: 9107: 9096:. Retrieved 9087: 9078: 9067:. Retrieved 9058: 9049: 9038:. Retrieved 9034:the original 9029: 9020: 9008:. Retrieved 8999: 8976:. Retrieved 8967: 8958: 8947:. Retrieved 8938: 8929: 8918:. Retrieved 8909: 8900: 8889:. Retrieved 8880: 8871: 8852: 8811: 8792: 8781:. Retrieved 8772: 8747:. Retrieved 8738: 8729: 8718:. Retrieved 8704: 8693:. Retrieved 8689:the original 8685:"Using SDXC" 8665:. Retrieved 8635: 8626: 8614:. Retrieved 8606:theverge.com 8605: 8596: 8585:. Retrieved 8570: 8559:. Retrieved 8551:theverge.com 8550: 8540: 8529:. Retrieved 8514: 8503:. Retrieved 8494: 8484: 8473:. Retrieved 8459: 8448:. Retrieved 8439: 8429: 8418:. Retrieved 8404: 8395: 8385: 8373:. Retrieved 8359: 8348:. Retrieved 8333: 8322:. Retrieved 8307: 8296:. Retrieved 8282: 8271:. Retrieved 8267:the original 8244:, retrieved 8235: 8226: 8215:, retrieved 8211:the original 8206: 8197: 8186:. Retrieved 8172: 8161:. Retrieved 8146: 8135:. Retrieved 8131:the original 8117: 8106:. Retrieved 8102:the original 8088: 8077:. Retrieved 8073:the original 8059: 8048:. Retrieved 8044:the original 8029: 8018:. Retrieved 8014:the original 7999: 7988:. Retrieved 7984:the original 7969: 7958:. Retrieved 7944: 7933:. Retrieved 7924: 7915: 7904:. Retrieved 7895: 7885: 7874:. Retrieved 7860: 7849:. Retrieved 7840: 7831: 7819:. Retrieved 7807: 7795: 7776: 7765:. Retrieved 7756: 7747: 7736:. Retrieved 7708:. Retrieved 7694: 7683:. Retrieved 7674: 7665: 7653:. Retrieved 7642: 7632: 7622:February 12, 7620:. Retrieved 7612:ITmedia NEWS 7611: 7602: 7583: 7569: 7554: 7539: 7528:. Retrieved 7514: 7504:, retrieved 7498: 7492: 7481:. Retrieved 7467: 7456:. Retrieved 7452: 7442: 7431:. Retrieved 7417: 7406:. Retrieved 7402:the original 7392: 7381:. Retrieved 7367: 7356:. Retrieved 7342: 7331:. Retrieved 7317: 7306:. Retrieved 7302:the original 7297: 7274:. Retrieved 7265: 7199: 7190: 7181: 7146: 7117: 7087:Flash memory 7070: 7053:CompactFlash 7039: 7030:card readers 7019: 7008: 7005: 6998: 6982: 6972:. Excluding 6963: 6940: 6931: 6921: 6914: 6907: 6900: 6888: 6876:Please help 6871:verification 6868: 6845: 6840: 6836: 6832: 6831:Capacity = ( 6827: 6814: 6799: 6790: 6780: 6773: 6766: 6759: 6747: 6735:Please help 6730:verification 6727: 6705:512 B. 6703: 6698: 6694: 6690: 6686: 6685:Capacity = ( 6681: 6673: 6664: 6661: 6644: 6640: 6630:0.36 / 0.54 6584:0.36 / 0.54 6381: 6373: 6370: 6361: 6354: 6327: 6308: 6304:flash memory 6290:Disk Utility 6286: 6282: 6163: 6148: 6139: 6129: 6122: 6115: 6108: 6096: 6084:Please help 6079:verification 6076: 6049: 6045: 6038: 6026: 6012: 6004: 5953:logical high 5949:Power Supply 5940:logic, OD = 5928: 5625:Description 5282:Description 4945:Description 4888: 4878: 4871: 4865: 4852: 4846: 4831: 4822: 4812: 4805: 4798: 4791: 4779: 4767:Please help 4762:verification 4759: 4696: 4640: 4541: 4526: 4517: 4507: 4500: 4493: 4486: 4474: 4462:Please help 4457:verification 4454: 4388: 4379: 4369: 4362: 4355: 4348: 4336: 4324:Please help 4319:verification 4316: 4273: 4257:Linux kernel 4223: 4215: 4179: 4160: 4156:flash drives 4137: 4118: 4102: 4066: 4059: 4055:Andrew Huang 4021:Counterfeits 4004: 3992:CompactFlash 3973: 3969:CompactFlash 3965: 3954: 3930:mass storage 3926:inaccessible 3895: 3892: 3881:series, and 3877:such as the 3855: 3615: 3608: 3577: 3565: 3561: 3513: 3483: 3474: 3464: 3457: 3450: 3443: 3431: 3419:Please help 3414:verification 3411: 3385: 3381: 3375: 3365: 3357: 3349: 3342: 3327: 3314:PQI Air Card 3310:Trek Flucard 3286: 3281: 3190: 3183: 3156: 3141: 3122: 3107: 3087: 3083: 3060: 3051: 3041: 3034: 3027: 3020: 3008: 2996:Please help 2991:verification 2988: 2965: 2961: 2958: 2955: 2951: 2920: 2911: 2901: 2894: 2887: 2880: 2868: 2856:Please help 2851:verification 2848: 2825: 2804: 2787:, as when a 2782: 2753: 2741: 2713: 2644:speed class 2511: 2510: 2446:Class 3 (U3) 2416:Class 1 (U1) 2380:Class 6 (V6) 2370:Class 6 (C6) 2341:Class 4 (C4) 2297:Class 2 (C2) 2239:Speed Class 2233:Video format 2229:Speed Class 2204: 2188: 2153: 2143: 2135: 2134: 2122: 2117: 2108: 2106: 2098: 2094: 2089: 2088: 2080: 2072: 2040: 2033: 2002: 1971: 1938: 1902: 1853: 1474: 1466: 1463: 1460: 1453: 1441: 1424: 1412: 1395: 1385: 1382: 1374: 1367: 1363: 1360: 1352: 1344: 1330: 1325: 1319: 1311:flash memory 1307: 1299: 1296: 1264: 1254: 1247: 1232: 1204: 1201: 1197: 1189: 1166:SDHC cards. 1164: 1157: 1145: 1141: 1117: 1084: 1070: 1043: 1034: 1024: 1017: 1010: 1003: 991: 979:Please help 974:verification 971: 810:input/output 791: 775: 772: 756: 745: 742: 731: 727: 725:technology. 719: 708: 697: 690: 642: 627: 610: 573: 572: 550: 544: 513:At the 2000 512: 501: 493:Memory Stick 490: 459: 442: 423: 417:series, and 413:such as the 392: 384:flash memory 380:non-volatile 371: 367: 366: 322: 313: 301: 279: 268: 257: 200: 194: 188: 182: 176: 170: 130: 117: 104: 95: 12560:(CF, CFast) 12236:January 31, 12022:21 November 11885:. SanDisk. 11842:October 13, 11565:21 November 11510:30 November 11479:30 November 11331:. SanDisk. 11329:"slotRadio" 11252:youtube.com 10860:youtube.com 10066:23 December 10036:23 February 9627:29 November 9458:Lofi-Gaming 9277:21 November 8616:19 December 8495:sandisk.com 8440:sandisk.com 8396:sandisk.com 8375:22 December 7821:30 December 7790:SanDisk.com 7597:SanDisk.com 6989:open-source 6699:READ_BL_LEN 6695:C_SIZE_MULT 6347:on Linux). 6341:exfat-utils 6334:proprietary 6170:file system 6058:MBR and FAT 6007:synchronous 4251:pins using 4234:bit banging 4152:ergonomical 4069:random data 4053:, photo by 4009:(2011) and 4000:floppy disk 3946:WiFi Direct 3914:photography 3808:In UHS mode 3802:In UHS mode 3756:In UHS mode 3629:file system 3523:receivers, 3360:product of 3287:Integrated 3171:Wells Fargo 2805:necessarily 2797:smartphones 2777:hard drives 2090:Speed Class 1729:SD Express 1610:Half / Full 1512:Card types 1500:PCI Express 1448:NVM Express 717:equipment. 376:proprietary 361:August 1999 232:SD Standard 207:full-duplex 83:Memory card 32:SDHC (gene) 12671:Categories 12651:xD-Picture 12634:SmartMedia 12596:Microdrive 12388:2019-10-13 12362:2010-08-22 12286:2010-08-22 12261:2010-08-22 12209:2007-03-08 12181:2013-09-01 12122:2011-02-27 12072:2011-04-11 12047:2010-08-22 11974:2014-01-02 11943:2011-05-02 11918:2010-08-22 11893:2011-11-30 11868:2011-11-30 11817:2013-11-13 11792:2010-08-22 11767:2014-01-02 11723:2018-01-06 11698:2016-11-26 11673:2016-11-26 11648:2013-06-09 11622:2013-06-07 11596:2024-01-22 11536:2016-02-23 11450:2020-11-30 11421:2011-12-09 11396:2011-12-30 11372:2024-09-11 11339:2011-11-27 11314:2014-01-02 11288:2010-08-22 11172:2016-02-23 11147:2016-02-23 11065:2020-10-14 10952:2016-02-23 10927:2016-02-23 10720:2017-08-02 10688:13 October 10659:2023-01-22 10630:2019-04-11 10620:sdcard.org 10583:2023-01-20 10558:2017-08-05 10533:2019-02-15 10523:sdcard.org 10495:. ODROID. 10487:hominoid. 10473:2024-09-11 10460:sdcard.org 10437:2019-02-15 10408:2013-11-13 10377:2017-03-29 10335:sdcard.org 10313:2018-06-27 10278:2019-02-15 10191:2024-04-01 10127:2020-05-19 10092:2019-08-06 10005:2024-01-19 9984:2011-08-09 9953:2021-02-04 9924:2021-02-04 9889:2013-11-25 9809:2014-01-02 9779:2010-08-22 9754:2013-11-13 9718:2020-04-18 9689:2013-11-13 9657:2014-08-12 9590:2012-12-27 9553:2014-01-02 9528:2018-12-21 9498:2018-12-21 9468:2018-12-21 9438:2014-01-02 9413:2020-02-05 9388:2015-11-27 9363:2012-01-04 9338:2011-09-05 9313:2021-11-07 9246:2016-03-03 9216:2016-03-03 9182:2016-03-03 9156:2016-03-03 9122:2021-04-10 9098:2021-04-10 9069:2021-04-10 9040:2021-04-10 8978:2017-03-20 8949:2010-08-22 8920:2010-08-22 8891:2010-08-22 8783:2023-05-03 8773:sdcard.org 8749:2019-02-15 8739:sdcard.org 8720:2011-12-08 8695:2011-12-08 8667:2011-12-08 8657:"Capacity" 8587:2018-11-19 8575:Kingston. 8561:2018-06-10 8531:2024-09-11 8505:2016-09-20 8475:2016-06-06 8450:2016-09-20 8420:2016-06-06 8367:. Micron. 8350:2014-01-02 8324:2014-01-02 8298:2014-01-02 8273:2014-01-02 8246:2024-09-11 8207:Pocket now 8188:2010-12-03 8163:2024-01-22 8137:2010-08-09 8108:2010-08-09 8079:2010-08-09 8069:CrunchGear 8050:2009-12-22 8020:2009-12-22 7990:2009-12-22 7960:2010-02-09 7935:2010-08-22 7906:2024-01-22 7876:2010-08-22 7851:2022-03-08 7841:sdcard.org 7808:sdcard.org 7767:2024-02-12 7738:2014-01-02 7710:2024-02-03 7685:2024-02-12 7530:2021-06-30 7506:2023-10-25 7483:2010-08-22 7458:2024-06-19 7433:2016-02-23 7408:2014-01-02 7383:2016-02-23 7358:2016-02-23 7333:2016-02-23 7308:2020-11-30 7276:2020-11-30 7245:References 7092:Microdrive 6970:trademarks 6904:newspapers 6763:newspapers 6589:High Speed 6402:Max. clock 6345:exfat-fuse 6112:newspapers 5986:NAND flash 5970:NAND flash 5942:Open-Drain 4795:newspapers 4490:newspapers 4352:newspapers 4204:A shield ( 4109:camcorders 3942:FTP server 3902:data plans 3879:GoPro Hero 3863:camcorders 3635:for SDHC, 3447:newspapers 3393:SDIO cards 3193:HID Global 3131:(NFC) and 3024:newspapers 2884:newspapers 2642:Comparable 2621:"×" rating 2397:75 Mbit/s 2361:45 Mbit/s 2332:30 Mbit/s 2288:15 Mbit/s 2159:Comparison 1786:3,938 MB/s 1765:1,969 MB/s 1574:High Speed 1496:Bus speed 1430:SD Express 1349:High Speed 1007:newspapers 899:>32 GB 823:SD (SDSC) 723:NAND flash 676:HDR-CX55V 568:smartphone 415:GoPro Hero 399:camcorders 251:Dimensions 205:≥ 985 MB/s 177:High-speed 122:over 32 GB 79:Media type 37:See also: 12564:CFexpress 11222:CR80 News 10503:25 August 10211:The Verge 8866:JetAudio. 8799:SanDisk. 8489:SanDisk. 8434:SanDisk. 8390:SanDisk. 8217:4 October 8098:Panasonic 8040:DailyTech 8010:DailyTech 7980:DailyTech 7896:Beta news 7757:ko.com.ua 7109:Footnotes 7001:Bluetooth 6978:royalties 6893:"SD card" 6752:"SD card" 6678:Version 1 6404:frequency 6391:Bus speed 6330:Microsoft 6174:hard disk 6101:"SD card" 5960:Interface 5938:Push-Pull 5923:Reserved 5897:Reserved 5681:Response 5582:Reserved 5556:Reserved 5340:Response 5239:Reserved 5213:Reserved 4881:Uses two 4784:"SD card" 4735: in) 4687: in) 4637: in) 4598: in) 4479:"SD card" 4341:"SD card" 4280:slotRadio 4276:slotMusic 4245:WRT54G-TM 4150:offer an 4129:hard disk 4125:hard disk 4051:at source 4035:data loss 3996:FlashPath 3793:SDXC UHS 3747:SDHC UHS 3639:for SDXC) 3549:Bluetooth 3539:readers, 3517:Palm Treo 3436:"SD card" 3336:slotMusic 3191:In 2011, 3013:"SD card" 2873:"SD card" 2745:camcorder 2728:Transcend 2224:Suggested 2197:Panasonic 2193:CFexpress 1546:12.5 MB/s 1493:Bus logo 996:"SD card" 953:SD (SDSC) 902:>2 TB 896:>2 GB 887:Capacity 738:Photokina 678:camcorder 665:Panasonic 638:gigabytes 466:Panasonic 460:In 1999, 430:Panasonic 237:Developed 219:mechanism 164:mechanism 135:over 2 TB 109:over 2 GB 12602:MiniCard 12407:Archived 12382:Archived 12336:July 31, 12327:Archived 12303:Archived 12280:Archived 12230:archived 12172:archived 12092:Archived 12066:Archived 12041:Archived 12016:archived 11937:Archived 11912:Archived 11887:Archived 11862:Archived 11836:Archived 11811:Archived 11761:Archived 11740:Archived 11717:Archived 11692:Archived 11667:Archived 11642:Archived 11590:Archived 11580:bunnie. 11559:Archived 11530:Archived 11504:Archived 11473:Archived 11444:Archived 11390:Archived 11366:archived 11333:Archived 11308:Archived 11278:"Eye-Fi" 11256:Archived 11226:Archived 11166:Archived 11115:Archived 11111:nfcw.com 11033:Archived 11029:nfcw.com 11002:Archived 10976:Archived 10946:Archived 10921:Archived 10895:Archived 10891:nfcw.com 10864:Archived 10834:Archived 10830:Engadget 10804:Archived 10800:visa.com 10774:Archived 10744:Archived 10740:nfcw.com 10682:Archived 10678:Engadget 10653:Archived 10624:Archived 10578:Hackaday 10527:Archived 10497:Archived 10464:Archived 10431:Archived 10399:Archived 10345:28 April 10339:Archived 10272:Archived 10248:18 March 10242:Archived 10221:18 March 10215:Archived 10185:Archived 10158:July 31, 10149:Archived 10142:"sd 9.0" 10118:Archived 10086:Archived 10060:Archived 9947:Archived 9939:"GL3232" 9915:Archived 9803:Archived 9799:Engadget 9773:Archived 9748:Archived 9712:Archived 9651:Archived 9621:Archived 9581:archived 9547:Archived 9522:Archived 9492:Archived 9488:Hackaday 9462:Archived 9432:Archived 9407:Archived 9332:Archived 9307:Archived 9240:Archived 9236:cinema5D 9176:Archived 9092:Archived 9063:Archived 9010:20 March 9004:Archived 8972:Archived 8943:Archived 8914:Archived 8885:Archived 8860:Archived 8841:Archived 8819:Archived 8801:Archived 8777:Archived 8743:Archived 8714:Archived 8661:Archived 8640:Archived 8610:Archived 8581:Archived 8555:Archived 8525:Archived 8499:Archived 8469:Archived 8444:Archived 8414:Archived 8369:Archived 8344:Archived 8318:Archived 8292:Archived 8240:archived 8236:Engadget 8182:Archived 8157:Archived 7954:Archived 7929:Archived 7900:Archived 7870:Archived 7845:Archived 7812:Archived 7784:Archived 7761:Archived 7732:Archived 7704:Archived 7679:Archived 7649:Archived 7644:Engadget 7616:Archived 7591:Archived 7524:Archived 7477:Archived 7427:Archived 7377:Archived 7352:Archived 7327:Archived 7298:Engadget 7270:Archived 7076:See also 7003:Type-A. 6396:Max. bus 6323:clusters 6319:EBPB 4.1 6295:SCANDISK 6266:EBPB 7.1 6252:EBPB 7.1 6233:EBPB 4.1 6219:EBPB 4.1 6201:EBPB 4.1 5679:Command, 5338:Command, 4547:Standard 4238:soldered 4077:compress 4015:SIM card 3986:and the 3984:FireWire 3967:such as 3938:ergonomy 3553:Ethernet 3533:FM radio 3364:and the 3118:JavaCard 3098:Nokia N8 2812:Features 2732:Kingston 2114:4K video 2012:Express 1984:UHS-III 1824:Express 1821:UHS-III 1749:985 MB/s 1723:624 MB/s 1704:312 MB/s 1690:UHS-III 1681:312 MB/s 1665:156 MB/s 1642:180 MB/s 1626:104 MB/s 924:Typical 788:Capacity 782:NAB 2024 752:Kingston 686:EOS 550D 674:Handycam 527:megabyte 358:Released 344:Extended 302:Standard 258:Standard 228:Standard 222:Variable 171:Standard 155:Variable 98:: Up to 89:Capacity 12622:PC Card 12616:MicroP2 12607:NT Card 12458:lwn.net 11933:"About" 11262:28 July 11232:28 July 11201:28 July 11121:28 July 11090:28 July 11039:28 July 11008:28 July 10982:28 July 10901:28 July 10870:28 July 10840:28 July 10810:28 July 10780:28 July 10750:28 July 10268:SD card 10114:SD card 9834:19 June 9744:SD card 9708:SD card 9297:TechNet 8939:Support 8910:Support 8881:Support 8825:SDcard. 8127:SanDisk 7028:-based 6976:cards, 6966:patents 6918:scholar 6777:scholar 6410:voltage 6215:BPB 3.0 6197:BPB 3.0 6126:scholar 5929:Notes: 5785:Ground 5707:Ground 5611:microSD 5530:Unused 5444:Ground 5366:Ground 5268:microSD 5187:Unused 5101:Ground 5023:Ground 4931:microSD 4809:scholar 4730:⁄ 4720:⁄ 4710:⁄ 4693:microSD 4682:⁄ 4672:⁄ 4662:⁄ 4641:Thin SD 4632:⁄ 4622:⁄ 4612:⁄ 4593:⁄ 4583:⁄ 4573:⁄ 4504:scholar 4366:scholar 4284:SanDisk 4242:Linksys 4210:Arduino 4039:SanDisk 4030:Samsung 4002:drive. 3976:PC card 3961:Android 3906:private 3841:Markets 3704:Partial 3461:scholar 3350:SD Plus 3347:SanDisk 3298:SanDisk 3175:neobank 3167:US Bank 3094:Symbian 3038:scholar 2898:scholar 2639:(MB/s) 2637:Approx. 2634:Rating 2486:90 MB/s 2466:60 MB/s 2433:30 MB/s 2390:10 MB/s 2258:Full HD 2205:Bottom: 2201:Samsung 1921:UHS-II 1893:UHS104 1832:UHS104 1818:UHS-II 1790:4.0 ×2 1780:4.0 ×1 1769:3.1 ×2 1753:3.1 ×1 1651:UHS-II 1605:50 MB/s 1582:25 MB/s 1421:UHS-III 1085:Thin SD 1021:scholar 919:128 TB 763:SanDisk 715:P2 card 711:MicroP2 693:Toshiba 653:SanDisk 607:bytes). 602:⁄ 574:MicroSD 558:microSD 470:Toshiba 462:SanDisk 451:History 434:Toshiba 426:SanDisk 374:, is a 327:~250 mg 318:~800 mg 201:Express 195:UHS-III 18:MicroSD 12591:miCard 12466:linaro 11500:Medium 11440:ni.com 10603: 8710:"SDIO" 6920: 6913: 6906: 6899: 6891: 6841:C_SIZE 6837:C_SIZE 6833:C_SIZE 6779: 6772: 6765: 6758: 6750: 6697:≤ 7, 6691:C_SIZE 6687:C_SIZE 6474:SDR104 6408:Signal 6311:FAT16B 6225:FAT16B 6128: 6121: 6114: 6107: 6099: 5944:logic. 5733:Power 5606:miniSD 5392:Power 5263:miniSD 5049:Power 4926:miniSD 4811: 4804: 4797: 4790: 4782: 4648:MiniSD 4643:(rare) 4506: 4499: 4492: 4485: 4477: 4368: 4361: 4354: 4347: 4339: 4263:Mbit/s 4253:DD-WRT 4140:laptop 4099:camera 3994:. The 3896:While 3831:Varies 3828:Varies 3825:Varies 3822:Varies 3819:Varies 3649:) and 3525:modems 3463: 3456: 3449: 3442: 3434: 3370:A-DATA 3358:Duo SD 3345:– The 3339:files. 3322:geotag 3294:Eye-Fi 3201:MiFare 3179:moneto 3040: 3033: 3026: 3019: 3011: 2900: 2893: 2886: 2879: 2871: 2724:Mbit/s 2716:CD-ROM 2708:(67×) 2692:(40×) 2676:(27×) 2660:(13×) 2610:2,000 2602:4,000 2563:1,500 2547:Write 2354:6 MB/s 2325:4 MB/s 1850:UHS50 1847:UHS-I 1829:UHS50 1815:UHS-I 1591:UHS-I 1508:Duplex 1415:duplex 1401:UHS-II 1386:UHS104 1322:CD-ROM 1227:128 TB 1225:up to 1182:up to 1134:up to 1023: 1016: 1009: 1002: 994: 913:32 GB 804:) and 759:Micron 551:miniSD 533:miniSD 346: 295:Weight 239: 217: 189:UHS-II 162: 150: 139:128 TB 12647:(UFS) 12581:(MMC) 12574:JEIDA 12551:Types 12330:(PDF) 12323:(PDF) 12175:(PDF) 12168:(PDF) 12148:(PDF) 12141:(PDF) 11968:(PDF) 11961:(PDF) 10714:(PDF) 10707:(PDF) 10467:(PDF) 10456:(PDF) 10402:(PDF) 10395:(PDF) 10371:(PDF) 10364:(PDF) 10307:(PDF) 10296:(PDF) 10152:(PDF) 10145:(PDF) 10121:(PDF) 10110:(PDF) 10030:(PDF) 10023:(PDF) 9978:(PDF) 9971:(PDF) 9918:(PDF) 9907:(PDF) 9883:(PDF) 9876:(PDF) 9634:time. 9584:(PDF) 9577:(PDF) 9271:(PDF) 9264:(PDF) 9210:(PDF) 9203:(PDF) 9150:(PDF) 9143:(PDF) 9030:Lexar 7815:(PDF) 7804:(PDF) 7655:2 May 7176:= 2 B 7099:(SPI) 7011:Linux 6925:JSTOR 6911:books 6784:JSTOR 6770:books 6607:0.72 6566:SDR12 6561:0.72 6543:SDR25 6538:1.44 6520:DDR50 6515:1.44 6497:SDR50 6492:2.88 6469:2.88 6451:FD156 6446:2.88 6428:HD312 6398:speed 6337:exFAT 6274:exFAT 6258:FAT32 6244:FAT32 6207:FAT16 6189:FAT12 6176:of a 6133:JSTOR 6119:books 5976:(top) 5936:PP = 5911: 5905: 5902: 5885: 5879: 5876: 5850: 5816: 5695: 5622:Logic 5570: 5564: 5561: 5544: 5538: 5535: 5509: 5475: 5354: 5279:Logic 5227: 5221: 5218: 5201: 5195: 5192: 5166: 5132: 5011: 4942:Logic 4875:type. 4816:JSTOR 4802:books 4511:JSTOR 4497:books 4373:JSTOR 4359:books 4240:to a 4184:like 4167:macOS 4163:Apple 4105:XDCAM 4081:0xFFs 3816:SDIO 3770:SDXC 3736:FAT32 3724:SDHC 3701:SDSC 3696:SDIO 3688:SDXC 3680:SDHC 3677:SDSC 3637:exFAT 3633:FAT32 3599:Wi-Fi 3545:Wi-Fi 3468:JSTOR 3454:books 3366:3 Way 3332:Gruvi 3289:Wi-Fi 3045:JSTOR 3031:books 2905:JSTOR 2891:books 2700:14.6 2697:100× 2684:7.03 2668:4.69 2652:2.34 2544:Read 2528:Name 2045:Class 1708:Full 1685:Half 1672:4.00 1669:Full 1630:Half 1617:3.01 1586:1.10 1568:1.01 1529:SDUC 1526:SDXC 1523:SDHC 1503:lanes 1379:UHS-I 1304:Speed 1271:Linux 1265:Most 1250:exFAT 1244:exFAT 1193:exFAT 1180:32 GB 1153:FAT32 1149:below 1136:32 GB 1095:below 1028:JSTOR 1014:books 945:exFAT 940:FAT32 935:FAT16 931:FAT12 916:2 TB 910:2 GB 882:2018 879:2009 876:2006 873:1999 870:Year 837:Logo 832:SDUC 829:SDXC 826:SDHC 704:Lexar 682:Canon 645:exFAT 547:CeBIT 336:Usage 323:Micro 280:Micro 215:Write 183:UHS-I 148:Block 113:32 GB 12636:(SM) 12598:(MD) 12415:2024 12338:2024 12238:2007 12024:2011 11844:2019 11567:2018 11512:2020 11481:2020 11264:2021 11234:2021 11203:2021 11123:2021 11092:2021 11041:2021 11010:2021 10984:2021 10903:2021 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