USB hardware - Knowledge

2313: 2238: 958: 119:), USB connections are directed; a host device has "downstream" facing ports that connect to the "upstream" facing ports of devices. Only downstream facing ports provide power; this topology was chosen to easily prevent electrical overloads and damaged equipment. Thus, USB cables have different ends: A and B, with different physical connectors for each. Each format has a plug and receptacle defined for each of the A and B ends. A USB cable, by definition, has a plug on each end—one A (or C) and one B (or C)—and the corresponding receptacle is usually on a computer or electronic device. The mini and micro formats may connect to an AB receptacle, which accepts either an A or a B plug, that plug determining the behavior of the receptacle. 2995: 2706:

a captive cable. The ID pin of the OTG port is not connected within plug as usual, but to the ACA itself, where signals outside the OTG floating and ground states are used for ACA detection and state signaling. The charging port does not pass data, but does use the D± signals for charging port detection. The accessory port acts as any other port. When appropriately signaled by the ACA, the portable device can charge from the bus power as if there were a charging port present; any OTG signals over bus power are instead passed to the portable device via the ID signal. Bus power is also provided to the accessory port from the charging port transparently.

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compared to the power pins so that the device can power up before establishing a data connection. Some devices operate in different modes depending on whether the data connection is made. Charging docks supply power and do not include a host device or data pins, allowing any capable USB device to charge or operate from a standard USB cable. Charging cables provide power connections, but not data. In a charge-only cable, the data wires are shorted at the device end, otherwise, the device may reject the charger as unsuitable.

1244: 1328: 147: 1618: 100: 1576: 917: 2715: 1494: 3133: 2036: 1747: 1535: 1412: 1188: 1201: 3415:. In most cases, these items contain no digital circuitry, and thus are not standard-compliant USB devices. This may cause problems with some computers, such as drawing too much current and damaging circuitry. Prior to the USB Battery Charging Specification, the USB specification required that devices connect in a low-power mode (100 mA maximum) and communicate their current requirements to the host, which then permits the device to switch into high-power mode. 1453: 1371: 1287: 1117: 1135: 794: 285: 274: 1028: 2139: 2000: 1739: 1180: 1016: 808: 552: 33: 1959: 1840: 1730: 1703: 1171: 1162: 2629:

plugs (one for power and data, the other for only power), so as to draw power as two devices. Such a cable is non-standard, with the USB compliance specification stating that "use of a 'Y' cable (a cable with two A-plugs) is prohibited on any USB peripheral", meaning that "if a USB peripheral requires more power than allowed by the USB specification to which it is designed, then it must be self-powered."

1918: 1801: 1760: 1721: 1694: 1685: 1153: 1144: 1108: 1881: 1712: 1126: 2621:) devices. Low-power devices may draw at most 1 unit load, and all devices must act as low-power devices before they are configured. A high-powered device must be configured, after which it may draw up to 5 unit loads (500 mA), or 6 unit loads (900 mA) for SuperSpeed devices, as specified in its configuration because the maximum power may not always be available from the upstream port. 2081:, not inter-operable with USB-IF compliant equipment and possibly damaging to both devices when plugged in. In addition to the above cable assemblies comprising two plugs, an "adapter" cable with a Micro-A plug and a standard-A receptacle is compliant with USB specifications. Other combinations of connectors are not compliant.There do exist A-to-A assemblies, referred to as cables (such as the 138:(from version 3.0), and SuperSpeed+ (from version 3.1). The modes have differing hardware and cabling requirements. USB devices have some choice of implemented modes, and USB version is not a reliable statement of implemented modes. Modes are identified by their names and icons, and the specification suggests that plugs and receptacles be color-coded (SuperSpeed is identified by blue). 753: 3392:, which is allowed by the standard, or use a dual-input USB cable, one input of which is for power and data transfer, the other solely for power, which makes the device a non-standard USB device. Some USB ports and external hubs can, in practice, supply more power to USB devices than required by the specification but a standard-compliant device may not depend on this. 2277:

specified to be at least 4.75 V, 4.4 V, and 4.35 V respectively by USB 2.0 for low-power devices, but must be at least 4.75 V at all locations for high-power devices (however, high-power devices are required to operate as a low-powered device so that they may be detected and enumerated if connected to a low-power upstream port). The USB 3.

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specifying the voltage from a range of 15 to 48 V in 100 mV steps. Higher voltages require electronically marked EPR cables that support 5 A operation and incorporate mechanical improvements required by the USB Type-C standard rev. 2.1; existing power modes are retroactively renamed Standard Power Range (SPR). In October 2021 Apple introduced a 140 W (28 V 5 A)

2666:(SDP) must initially be a low-power device, with high-power mode contingent on later USB configuration by the host. Charging ports, however, can immediately supply between 0.5 and 1.5 A of current. The charging port must not apply current limiting below 0.5 A, and must not shut down below 1.5 A or before the voltage drops to 2 V. 3250:(ITU) announcing on October 22, 2009, that it had also embraced the Universal Charging Solution as its "energy-efficient one-charger-fits-all new mobile phone solution," and added: "Based on the Micro-USB interface, UCS chargers will also include a 4-star or higher efficiency rating—up to three times more energy-efficient than an unrated charger." 3403:) when the device is first connected. Otherwise, connecting a device could cause problems with the host's internal power. USB devices are also required to automatically enter ultra low-power suspend mode when the USB host is suspended. Nevertheless, many USB host interfaces do not cut off the power supply to USB devices when they are suspended. 2186:

allowed time, the host considers the command lost. When adding USB device response time, delays from the maximum number of hubs added to the delays from connecting cables, the maximum acceptable delay per cable amounts to 26 ns. The USB 2.0 specification requires that cable delay be less than

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Section 1.3: Additional requirements for a more rugged connector that is durable past 10,000 cycles and still meets the USB 2.0 specification for mechanical and electrical performance was also a consideration. The Mini-USB could not be modified and remain backward compatible to the existing connector

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standard. When a device doesn't recognize the faster-charging standard, generally the device and the charger fall back to the USB battery-charging standard of 5 V at 1.5 A (7.5 W). When a device detects it is plugged into a charger with a compatible faster-charging standard, the device

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specification) to devices with greater power demands. (USB-PD A and B plugs have a mechanical mark while Micro plugs have a resistor or capacitor attached to the ID pin indicating the cable capability.) USB-PD Devices can request higher currents and supply voltages from compliant hosts—up to 2 A

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chargers indicate the available current by voltages on the D− and D+ lines (sometimes also called "Apple Brick ID"). When D+ = D− = 2.0 V, the device may pull up to 900 mA. When D+ = 2.0 V and D− = 2.8 V, the device may pull up to 1 A of current. When D+ = 2.8 V and D− =

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command, a kind of vendor-defined message (VDM) sent over the configuration data channel (CC). Using this command, the cable reports its current capacities, maximum speed, and other parameters. Full-Featured USB Type-C devices are a mechanic prerequisite for multi-lane operation (USB 3.2 Gen 1x2, USB

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On the device side, a modified Micro-B plug (Micro-B SuperSpeed) is used to cater for the five additional pins required to achieve the USB 3.0 features (USB-C plug can also be used). The USB 3.0 Micro-B plug effectively consists of a standard USB 2.0 Micro-B cable plug, with an additional 5 pins plug

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Type-A plugs and receptacles are designed to interoperate. To achieve USB 3.0's SuperSpeed (and SuperSpeed+ for USB 3.1 Gen 2), 5 extra pins are added to the unused area of the original 4 pin USB 1.0 design, making USB 3.0 Type-A plugs and receptacles backward compatible

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ACAs have three ports: the OTG port for the portable device, which is required to have a Micro-A plug on a captive cable; the accessory port, which is required to have a Micro-AB or type-A receptacle; and the charging port, which is required to have a Micro-B receptacle, or type-A plug or charger on

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Where devices (for example, high-speed disk drives) require more power than a high-power device can draw, they function erratically, if at all, from bus power of a single port. USB provides for these devices as being self-powered. However, such devices may come with a Y-shaped cable that has two USB

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USB-C devices support power currents of 1.5 A and 3.0 A over the 5 V power bus in addition to baseline 900 mA. These higher currents can be negotiated through the configuration line. Devices can also utilize the full Power Delivery specification using both BMC-coded configuration

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The OTG device with the A-plug inserted is called the A-device and is responsible for powering the USB interface when required, and by default assumes the role of host. The OTG device with the B-plug inserted is called the B-device and by default assumes the role of peripheral. An OTG device with no

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on January 4, 2007, have a similar width to Mini-USB, but approximately half the thickness, enabling their integration into thinner portable devices. The Micro-A connector is 6.85 by 1.8 mm (0.270 by 0.071 in) with a maximum overmold boot size of 11.7 by 8.5 mm (0.46 by 0.33 in),

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USB ports and connectors are often color-coded to distinguish their different functions and USB versions. These colors are not part of the USB specification and can vary between manufacturers; for example, the USB 3.0 specification mandates appropriate color-coding while it only recommends blue

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Revision 1.2 of the specification was released in 2010. It made several changes, and increased limits including allowing 1.5 A on charging downstream ports for unconfigured devices—allowing High Speed communication while having a current up to 1.5 A. Also, support was removed for charging

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There are several minimum allowable voltages defined at different locations within a chain of connectors, hubs, and cables between an upstream host (providing the power) and a downstream device (consuming the power). To allow for voltage drops, the voltage at the host port, hub port, and device are

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Some older devices and cables with Mini-A connectors have been certified by USB-IF. The Mini-A connector is obsolete: no new Mini-A connectors and neither Mini-A nor Mini-AB receptacles will be certified.Note: Mini-B is not deprecated, although it is less and less used since the arrival of Micro-B.

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USB connector types multiplied as the specification progressed. The original USB specification detailed standard-A and standard-B plugs and receptacles. The connectors were different so that users could not connect one computer receptacle to another. The data pins in the standard plugs are recessed

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The USB standard specifies tolerances for compliant USB connectors to minimize physical incompatibilities in connectors from different vendors. The USB specification also defines limits to the size of a connecting device in the area around its plug, so that adjacent ports are not blocked. Compliant

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specifications) was also updated to reflect this change at that time. A number of extensions to the USB Specifications have progressively further increased the maximum allowable V_BUS voltage: starting with 6.0 V with USB BC 1.2, to 21.5 V with USB PD 2.0 and 50.9 V with USB PD 3.1,

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Commonly available "OTG" cables that address widespread misuse of Micro-B and Mini-B receptacles for OTG devices, e.g. smartphones (as opposed to Micro-AB and Mini-AB, which accept either plug.) While not compliant with the USB standards, these cables at least do not provide a device damage hazard

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The USB-C connector supersedes all earlier USB connectors and the Mini DisplayPort connector. It is used for all USB protocols and for Thunderbolt (3 and later), DisplayPort (1.2 and later), and others. Developed at roughly the same time as the USB 3.1 specification, but distinct from it, the

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By design, it is difficult to insert a USB plug into its receptacle incorrectly. The USB specification requires that the cable plug and receptacle be marked so the user can recognize the proper orientation. The USB-C plug however is reversible. USB cables and small USB devices are held in place by

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Sleep-and-charge USB ports can be used to charge electronic devices even when the computer that hosts the ports is switched off. Normally, when a computer is powered off the USB ports are powered down. This feature has also been implemented on some laptop docking stations allowing device charging

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USB 2.0 provides for a maximum cable length of 5 metres (16 ft 5 in) for devices running at high speed (480 Mbit/s). The primary reason for this limit is the maximum allowed round-trip delay of about 1.5 μs. If USB host commands are unanswered by the USB device within the

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Standard USB has a minimum rated lifetime of 1,500 cycles of insertion and removal, the Mini-USB receptacle increased this to 5,000 cycles, and the newer Micro-USB and USB-C receptacles are both designed for a minimum rated lifetime of 10,000 cycles of insertion and removal. To accomplish this, a

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As of USB Power Delivery specification revision 2.0, version 1.2, the six fixed power profiles for power sources have been deprecated. USB PD Power Rules replace power profiles, defining four normative voltage levels at 5 V, 9 V, 15 V, and 20 V. Instead of six fixed

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Since these currents are larger than in the original standard, the extra voltage drop in the cable reduces noise margins, causing problems with High Speed signaling. Battery Charging Specification 1.1 specifies that charging devices must dynamically limit bus power current draw during High Speed

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The Micro plug design is rated for at least 10,000 connect-disconnect cycles, which is more than the Mini plug design. The Micro connector is also designed to reduce the mechanical wear on the device; instead, the easier-to-replace cable is designed to bear the mechanical wear of connection and

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standard specified connectors that were easy to use and that would have acceptable life spans; revisions of the standard added smaller connectors useful for compact portable devices. Higher-speed development of the USB standard gave rise to another family of connectors to permit additional data

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Manufacturers of personal electronic devices might not include a USB standard connector on their product for technical or marketing reasons. E.g. Olympus has been using a special cable called CB-USB8 one end of which has a special contact. Some manufacturers provide proprietary cables, such as

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The first Power Delivery specification (Rev. 1.0) defined six fixed power profiles for the power sources. PD-aware devices implement a flexible power management scheme by interfacing with the power source through a bidirectional data channel and requesting a certain level of electrical power,

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In May 2021, the USB PD promoter group launched revision 3.1 of the specification. Revision 3.1 adds Extended Power Range (EPR) mode which allows higher voltages of 28, 36, and 48 V, providing up to 240 W of power (48 V at 5 A), and the "Adjustable Voltage Supply" (AVS) protocol which allows

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A bus-powered hub is a high-power device providing low-power ports. It draws 1 unit load for the hub controller and 1 unit load for each of at most 4 ports. The hub may also have some non-removable functions in place of ports. A self-powered hub is a device that provides high-power ports by

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The intent is to permit uniformly charging laptops, tablets, USB-powered disks and similarly higher-power consumer electronics, as a natural extension of existing European and Chinese mobile telephone charging standards. This may also affect the way electric power used for small devices is

2130:, that permit their devices to physically connect to a USB standard port. Full functionality of proprietary ports and cables with USB standard ports is not assured; for example, some devices only use the USB connection for battery charging and do not implement any data transfer functions. 2181:

The USB 1.1 standard specifies that a standard cable can have a maximum length of 5 metres (16 ft 5 in) with devices operating at full speed (12 Mbit/s), and a maximum length of 3 metres (9 ft 10 in) with devices operating at low speed (1.5 Mbit/s).

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output, allowing a voltage range of 3.3 to 21 V in 20 mV steps, and a current specified in 50 mA steps, to facilitate constant-voltage and constant-current charging. Revision 3.0 also adds extended configuration messages and fast role swap and deprecates the BFSK protocol.

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The 24-pin double-sided connector provides four power–ground pairs, two differential pairs for USB 2.0 data (though only one pair is implemented in a USB-C cable), four pairs for SuperSpeed data bus (only two pairs are used in USB 3.1 mode), two "sideband use" pins,

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To enable Type-AB receptacles to distinguish which end of a cable is plugged in, plugs have an "ID" pin in addition to the four contacts in standard-size USB connectors. This ID pin is connected to GND in Type-A plugs, and left unconnected in Type-B plugs. Typically, a

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at 5 V (for a power consumption of up to 10 W), and optionally up to 3 A or 5 A at either 12 V (36 W or 60 W) or 20 V (60 W or 100 W). In all cases, both host-to-device and device-to-host configurations are supported.

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Some non-standard USB devices use the 5 V power supply without participating in a proper USB network, which negotiates power draw with the host interface. Examples include USB-powered keyboard lights, fans, mug coolers and heaters, battery chargers, miniature

780:-compliant; the Mini-B USB connector was standard for transferring data to and from the early smartphones and PDAs. Both Mini-A and Mini-B plugs are approximately 3 by 7 mm (0.12 by 0.28 in). The Mini-AB receptacle accepts either a Mini-A or Mini-B plug. 1036:

USB-C Specification 1.0 was finalized in August 2014 and defines a new small reversible-plug connector for USB devices. The USB-C plug connects to both hosts and devices, replacing various Type-A and Type-B connectors and cables with a standard meant to be

979:(OTG) introduces the concept of a device performing both host and device roles. All current OTG devices are required to have one, and only one, USB connector: a Micro-AB receptacle. (In the past, before the development of Micro-USB, On-The-Go devices used 193:

with A plugs on both ends, which may be valid if the "cable" includes, for example, a USB host-to-host transfer device with two ports. This is, by definition, a device with two logical B ports, each with a captive cable, not a cable with two A ends.

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locking device was added and the leaf-spring was moved from the jack to the plug, so that the most-stressed part is on the cable side of the connection. This change was made so that the connector on the less expensive cable would bear the most

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on a device, such as a printer. On some devices, the Type-B receptacle has no data connections, being used solely for accepting power from the upstream device. This two-connector-type scheme (A/B) prevents a user from accidentally creating a

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even when no laptop is present. On laptops, charging devices from the USB port when it is not being powered from AC drains the laptop battery; most laptops have a facility to stop charging if their own battery charge level gets too low.

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The connectors the USB committee specifies support a number of USB's underlying goals, and reflect lessons learned from the many connectors the computer industry has used. The connector mounted on the host or device is called the

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supplementing the power supply from the host with its own external supply. Optionally, the hub controller may draw power for its operation as a low-power device, but all high-power ports must draw from the hub's self-power.

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The USB Power Delivery specification revision 2.0 (USB PD Rev. 2.0) has been released as part of the USB 3.1 suite. It covers the USB-C cable and connector with a separate configuration channel, which now hosts a

1052:(BMC) configuration data channel (CC). Type-A and Type-B adaptors and cables are required for older hosts and devices to plug into USB-C hosts and devices. Adapters and cables with a USB-C receptacle are not allowed. 998:

plug inserted defaults to acting as a B-device. If an application on the B-device requires the role of host, then the Host Negotiation Protocol (HNP) is used to temporarily transfer the host role to the B-device.

6342: 4058: 6210: 3270:. The MoU lasted until 2014. The common EPS specification (EN 62684:2010) references the USB Battery Charging Specification and is similar to the GSMA/OMTP and Chinese charging solutions. In January 2011, the 2284:

Unlike USB 2.0 and USB 3.2, USB4 does not define its own VBUS-based power model. Power for USB4 operation is established and managed as defined in the USB Type-C Specification and the USB PD Specification.

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USB 3.0 introduced Type-A SuperSpeed plugs and receptacles as well as micro-sized Type-B SuperSpeed plugs and receptacles. The 3.0 receptacles are backward-compatible with the corresponding pre-3.0 plugs.

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The charging device identifies a charging port by non-data signaling on the D+ and D− terminals. A dedicated charging port places a resistance not exceeding 200 Ω across the D+ and D− terminals.

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The shell on the plug makes contact with the receptacle before any of the internal pins. The shell is typically grounded, to dissipate static electricity and to shield the wires within the connector.

744:(which is part of the connector used for its handling) is 16 by 8 mm (0.63 by 0.31 in) for the Standard-A plug type, while for the Type-B it is 11.5 by 10.5 mm (0.45 by 0.41 in). 947:"stacked" to the side of it. In this way, cables with smaller 5 pin USB 2.0 Micro-B plugs can be plugged into devices with 10 contact USB 3.0 Micro-B receptacles and achieve backward compatibility. 2116:

Micro-A and Micro-B have one more contact than Standard-A and Standard-B in order for hardware with a Micro-AB receptacle to discern Micro-A from Micro-B and behave as a host or device accordingly.

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OTG devices attached either to a peripheral-only B-device or a standard/embedded host have their role fixed by the cable, since in these scenarios it is only possible to attach the cable one way.

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In standard USB, the electrical contacts in a USB connector are protected by an adjacent plastic tongue, and the entire connecting assembly is usually protected by an enclosing metal shell.

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On Dell, HP and Toshiba laptops, sleep-and-charge USB ports are marked with the standard USB symbol with an added lightning bolt or battery icon on the right side. Dell calls this feature

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On January 8, 2018, USB-IF announced the Certified USB Fast Charger logo for chargers that use the Programmable Power Supply (PPS) protocol from the USB Power Delivery 3.0 specification.

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In October 2023, the USB PD promoter group launched revision 3.2 of the specification. The AVS protocol now works with the old standard power range (SPR), down to a minimum of 9 V.

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size, all of which were deprecated in USB 3.2 in favor of Type-C. There are five speeds for USB data transfer: Low Speed, Full Speed, High Speed (from version 2.0 of the specification),

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The different A and B plugs prevent accidentally connecting two power sources. However, some of this directed topology is lost with the advent of multi-purpose USB connections (such as

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The Micro-AB receptacle is capable of accepting Micro-A and Micro-B plugs, attached to any of the legal cables and adapters as defined in revision 1.01 of the Micro-USB specification.

2656:(DCP) without data. Dedicated charging ports can be found on USB power adapters to run attached devices and battery packs. Charging ports on a host with both kinds will be labeled. 4591: 150:

Non-standard USB extension cable, plug on the left, receptacle on the right. (USB does not allow extension cables. Non-standard cables may work but cannot be presumed reliable.)

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The following 10 biggest mobile phone companies have signed the MoU: Apple, LG, Motorola, NEC, Nokia, Qualcomm, Research In Motion, Samsung, Sony Ericsson, Texas Instruments

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Before the Battery Charging Specification was defined, there was no standardized way for the portable device to inquire how much current was available. For example, Apple's

251:. Mini and micro connectors have their GND connections moved from pin #4 to pin #5, while their pin #4 serves as an ID pin for the On-The-Go host/client identification. 6350: 2245:

The tolerance on V_BUS at an upstream (or host) connector was originally ±5% (i.e. could lie anywhere in the range 4.75 V to 5.25 V). With the release of the

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The USB 3.0 standard does not directly specify a maximum cable length, requiring only that all cables meet an electrical specification: for copper cabling with

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As of 2024 mainstream USB PD charging controllers support up to 100 W through a single port, with a few up to 140 W and custom built up to 180 W.

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port may want to charge and access a USB peripheral simultaneously, yet having only a single port (both due to On-The-Go and space requirement) prevents this.

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are required to use a USB port as a power port for battery charging. This was the first standard to use the convention of shorting D+ and D− in the charger.

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The USB standards do not exhaustively list all combinations with one Type-A and one Type-B connector, however, most such cables have good chances of working.

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host to device chain, at steady state. Note that under transient conditions the supply at the device can momentarily drop from 4.0 V to 3.67 V.

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while the Micro-B connector is 6.85 by 1.8 mm (0.270 by 0.071 in) with a maximum overmold size of 10.6 by 8.5 mm (0.42 by 0.33 in).

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The USB Power Delivery specification revision 3.0 defines an optional Programmable Power Supply (PPS) protocol that allows granular control over V

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is also mentioned by the specification). Thus, to support SuperSpeed data transmission, cables contain twice as many wires and are larger in diameter.

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USB plugs fit one receptacle with notable exceptions for USB On-The-Go "AB" support and the general backward compatibility of USB 3.0 as shown.

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signaling; 1.2 specifies that charging devices and ports must be designed to tolerate the higher ground voltage difference in High Speed signaling.

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The Type-B plug: This plug has a near square cross-section with the top exterior corners beveled. As part of a removable cable, it inserts into an

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PoweredUSB is a proprietary extension that adds four pins supplying up to 6 A at 5 V, 12 V, or 24 V. It is commonly used in

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delivers 20 W at the normal 5 V. Some of these technologies, such as Quick Charge 4, eventually became compatible with USB PD again.

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on a USB host or hub, and carries both power and data. Captive cables on USB devices such as keyboards or mice terminate with a Type-A plug.

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pulls more current or the device tells the charger to increase the voltage or both to increase power (the details vary between standards).

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The Certified USB Fast Charger logo indicating support for the Programmable Power Supply (PPS) protocol in USB Power Delivery (PD) chargers

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USB cables with standard USB Type-A and Type-B connectors to deliver increased power (more than 7.5 W maximum allowed by the previous

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organized a voluntary Memorandum of Understanding (MoU) to adopt micro-USB as a common standard for charging smartphones marketed in the

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High-power devices in USB 2.0 are those that draw more than one unit load (up to a maximum of 5 unit loads). 1 unit load is 100 mA.

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Some devices, when plugged into charging ports, draw even more power (10 watts) than the Battery Charging Specification allows—the

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USB PD charger with new MacBooks, and in June 2023 Framework introduced a 180 W (36 V 5 A) GaN USB PD charger with the Framework 16.

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Some USB devices require more power than is permitted by the specifications for a single port. This is common for external hard and

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A yellow charge-only "USB" Type-A receptacle and a USB 3.0 Type-A receptacle, both upside-down, on a front panel with card reader

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The thinner Micro-USB connectors were intended to replace the Mini connectors in devices manufactured since May 2007, including

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Micro-USB was endorsed as the standard connector for data and power on mobile devices by the cellular phone carrier group

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in smartphones, and USB-powered Wi-Fi routers), which require A-to-A, B-to-B, and sometimes Y/splitter cables. See the

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transmitted and used in both residential and public buildings. The standard is designed to coexist with the previous

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Mini-USB connectors were introduced together with USB 2.0 in April 2000, mostly used with smaller devices such as

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variable up to 5 A and 20 V depending on supported profile. The power configuration protocol can use

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USB 3.0 provides two additional differential pairs (four wires, SSTx+, SSTx−, SSRx+ and SSRx−), providing

3731: 6498: 6382: 6006: 5550: 5504: 3996: 3212: 859: 724:

The Type-A plug. This plug has an elongated rectangular cross-section, inserts into a Type-A receptacle on a

280:

shown end-on, not to scale. Light areas represent cavities. The plugs are pictured with USB logo to the top.

3267: 3095: 2602:>20 V (>60 W) operation requires an electronically marked Extended Power Range (EPR) cable. 873: 3785: 206:, and the connectors would be used more frequently, and perhaps with less care, than previous connectors. 202:

The standard connectors were designed to be more robust than many past connectors. This is because USB is

2702:

are devices that provide portable charging power to an On-The-Go connection between host and peripheral.

1048:+5 V power for active cables, and a configuration pin for cable orientation detection and dedicated 5574: 4382: 3235:) announced that its members had agreed on Micro-USB as the future common connector for mobile devices. 3104:

Prior to Power Delivery, mobile phone vendors used custom protocols to exceed the 7.5 W cap on the

2994: 950:

USB cables exist with various combinations of plugs on each end of the cable, as displayed below in the

5826:"How to configure the system to charge devices over USB port when it is off - idea/Lenovo laptops - NL" 5528: 3665: 835: 175:

the gripping force from the receptacle, with no screws, clips, or thumb-turns as other connectors use.

5074: 4231: 4099: 4991: 4079: 3395:

In addition to limiting the total average power used by the device, the USB specification limits the

2296:

Low-power devices are those which draw less than 1 unit load. 1 unit load is 100 mA for USB 2.0

6268: 4970: 4469: 3813: 3071:

profiles, power supplies may support any maximum source output power from 0.5 W to 100 W.

6563: 5909: 3242:(GSMA) followed suit on February 17, 2009, and on April 22, 2009, this was further endorsed by the 17: 3505:(Technical report) (Revision 2.0 ed.). USB-IF. 2000-04-27. 6.4.4 Prohibited Cable Assemblies. 4884: 3865: 3056: 2588:>3 A (>20 W) operation requires an electronically marked cable rated at 5 A. 2167: 248: 43:

Proprietary UC-E6 connector used on many older Japanese cameras for both USB and analog AV output

5988: 4279:"DisplayPort Alternate Mode for USB Type-C Announced - Video, Power, & Data All Over Type-C" 3281:

made USB-C compulsory as a mobile phone charging standard from 2024, and for laptops from 2026.

6532: 6403: 3036: 2250: 2171: 1072: 823: 4644: 2085:); however, these have a pair of USB devices in the middle, making them more than just cables. 885: 6604: 6243: 4905: 2281:

specifications require that all devices must operate down to 4.00 V at the device port.

2263: 2241:

Worst-case voltage drop topology of a USB 2.0 host to low-power device chain, at steady state

2127: 889: 229:

devices must either fit within the size restrictions or support a compliant cable that does.

5551:"How fast can a fast-charging phone charge if a fast-charging phone can charge really fast?" 3618: 1055:

Full-featured USB-C 3.1 cables contain a full set of wires and are "electronically marked" (

3573: 3452: 3105: 2262:

while still maintaining backwards compatibility with USB 2.0 by requiring various forms of

2078: 847: 406: 6110: 6082:"The Wireless Association Announces One Universal Charger Solution to Celebrate Earth Day" 4941: 4816:"Universal Serial Bus 2.0 Specification, Section 7.2.1.4 High-power Bus-powered Functions" 4021: 3897: 8: 4784:"Universal Serial Bus 2.0 Specification, Section 7.2.1.3 Low-power Bus-powered Functions" 3259: 3243: 2208: 2204:), which is close to the maximum achievable transmission speed for standard copper wire. 2082: 559: 6186:"One size-fits-all mobile phone charger: IEC publishes first globally relevant standard" 5891: 4615: 3525: 130:

intended for mobile equipment, which was deprecated when it was replaced by the thinner

5360: 4815: 4783: 3964: 3469: 3377: 3160:

laptops, sleep-and-charge USB ports are marked with a non-standard symbol (the letters

2257:

at higher currents. The USB 2.0 specification (and therefore implicitly also the USB 3.

1056: 5825: 5165: 5030: 3082: 36:

Various legacy USB connectors along a centimeter ruler for scale. From left to right:

6589: 6584: 6520: 6515: 6375: 6085: 5530:

Universal Serial Bus Power Delivery Specification revision 3.2, version 1.0

5170:

Universal Serial Bus Power Delivery Specification revision 3.1, version 1.0

5137:

Universal Serial Bus Power Delivery Specification revision 3.0, version 1.1

5106:

Universal Serial Bus Power Delivery Specification revision 2.0, version 1.2

4142:"Apple's Lightning to Micro-USB adapter now available in US, not just Europe anymore" 3423: 3327: 3301: 3185: 3052: 1049: 3035:

coding over the CC (configuration channel) wire if one is present, or a 24 MHz

6135: 5205:"USB 3.0 Promoter Group Announces Availability of USB Power Delivery Specification" 3400: 3381: 2269:

USB PD continues the use of the bilateral 5% tolerance, with allowable voltages of

991: 80: 6503: 3385: 3239: 1327: 1243: 769: 146: 112: 49:

Standard-A receptacle (non-compliant because USB does not allow extension cables)

5439:"USB-IF Introduces Fast Charging to Expand its Certified USB Charger Initiative" 5321: 4877:"I have the drive plugged in but I cannot find the drive in "My Computer", why?" 2211: 26 wires the maximum practical length is 3 metres (9 ft 10 in). 6594: 5934: 4555: 3724:"Universal Serial Bus Revision 3.0 Specification, Sections 3.1.1.1 and 5.3.1.3" 3448: 3408: 3396: 3263: 1617: 761: 5612: 4354:"On-The-Go and Embedded Host Supplement to the USB Revision 3.0 Specification" 3549: 2554:

Up to 5 unit loads; with non-SuperSpeed devices, one unit load is 100 mA.

916: 79:

devices; modern versions of the standard extend the power delivery limits for

6629: 6553: 6508: 6480: 5772: 5304:"USB Power Delivery v2.0 Specification Finalized - USB Gains Alternate Modes" 3444: 3228: 3010:) specification (USB PD rev. 1), an extension that specifies using certified 2695: 2254: 2174:, which additionally require shielding (typically, shielded twisted pair but 1575: 994:

in the device is used to detect the presence or absence of an ID connection.

976: 971: 179: 163:. The official USB specification documents also periodically define the term 99: 6185: 4533: 4405:"Review: Logitech's Ultrathin mini keyboard cover makes the wrong tradeoffs" 3543:"USB 2.0 Specification Engineering Change Notice (ECN) #1: Mini-B connector" 2617:

which is 100 mA for USB 2.0, or 150 mA for SuperSpeed (i.e. USB 3.

925: 6635: 6368: 6292: 5357:

Universal Serial Bus Power Delivery Specification revision 2.0, version 1.2

3422:

is one such device; it negotiates the current pull with data pin voltages.

3361: 3322: 3196: 3157: 3132: 3109: 2714: 2163: 2159: 1037: 641: 203: 88: 72: 4328:

Universal Serial Bus Type-C Cable and Connector Specification, Release 2.2

3786:"What is the Difference between USB Type A and USB Type B Plug/Connector?" 3612:"Universal Serial Bus Cables and Connectors Class Document – Revision 2.0" 3289:

A variety of (non-USB) standards support charging devices faster than the

3274:

released its version of the (EU's) common EPS standard as IEC 62684:2011.

2572:

Up to 6 unit loads; with multi-lane devices, one unit load is 250 mA.

2563:

Up to 6 unit loads; with SuperSpeed devices, one unit load is 150 mA.

1493: 6057:"Meeting the challenge of the universal charge standard in mobile phones" 4748: 4437: 3838:"ID Pin Resistance on Mini B-plugs and Micro B-plugs Increased to 1 Mohm" 3464: 2419:

Single-lane SuperSpeed+ (USB 3.2 Gen2x1, and former USB 3.1 Gen2) device

2110: 2035: 1746: 1534: 1411: 1187: 773: 267: 255: 238: 6490: 3002:

In July 2012, the USB Promoters Group announced the finalization of the

1452: 1370: 1286: 1200: 6609: 6568: 5575:"Qualcomm Announces Quick Charge 4: Supports USB Type-C Power Delivery" 3438: 3426: 3048: 2220: 877: 831: 765: 284: 263: 135: 76: 5960:"Broad Manufacturer Agreement Gives Universal Phone Cable Green Light" 5101: 4719: 4051:"Commission welcomes new EU standards for common mobile phone charger" 1134: 1116: 793: 772:. The Mini-A connector and the Mini-AB receptacle connector have been 6318:"Watt to Know About iPhone & iPad Power Adapters | Analysis" 5264: 4283: 3412: 3389: 3215:

group (a forum of mobile network operators and manufacturers such as

3153: 1027: 777: 273: 6269:"How does fast charging work? Here's every single standard compared" 3693:"Universal Serial Bus Micro-USB Cables and Connectors Specification" 2253:

elected to increase the upper voltage limit to 5.5 V to combat

2158:

The D± signals used by low, full, and high speed are carried over a

6211:"Common charger: MEPs agree on proposal to reduce electronic waste" 3812:(Press release). USB Implementers Forum. 2007-05-27. Archived from 3319: 3224: 2138: 1031:

USB cable with a USB-C plug and a USB-C port on a notebook computer

865:

Micro-USB was embraced as the "Universal Charging Solution" by the

776:

since May 2007. Mini-B connectors are still supported, but are not

638: 116: 3929:"Micro-USB mobile phone/smartphone cable connector pinout diagram" 1999: 1738: 1179: 1015: 844:

Universal Serial Bus Micro-USB Cables and Connectors Specification

807: 551: 6599: 6465: 6460: 6455: 6450: 3346: 3220: 602: 87:. USB has been selected as the standard charging format for many 32: 5910:"How to conform to China's new mobile phone interface standards" 5278: 5132: 4526:"USB Frequently Asked Questions: Cables and Long-Haul Solutions" 3873:, Revision 2.0, USB Implementers Forum, August 2007, p. 6, 3429:

devices also require a special charger that runs at 1.9 A.

907: 563:

A blue Standard-A USB receptacle without USB 3.0 contacts fitted

71:

cables include additional data paths. The USB standard included

6614: 6558: 3354: 3313: 3307: 3169: 2682: 2175: 881: 657: 107:

USB connector plugs, omitting the current standard Type-C plugs

67:

paths. All versions of USB specify cable properties; version 3.

5614:

140W PD 3.1 Power Adapters, the future of USB C Power Delivery

5599:"Teardown of Anker 140W PD3.1 USB-C GaN Charger (717 Charger)" 1958: 1839: 1729: 1702: 1170: 1161: 752: 6470: 4309:

Universal Serial Bus Type-C Cable and Connector Specification

3216: 3200: 2249:

specification in 2014 and its 3 A power capability, the

2246: 2151: 1917: 1880: 1800: 1759: 1720: 1711: 1693: 1684: 1152: 1143: 1125: 1107: 1020: 1010: 691:

High-retention connector, mostly used on industrial hardware

6242:

Kumar, Ajay; Winkelman, Steven; LeClair, Dave (2022-07-27).

3673: 6475: 6267:

Hill, Simon; Revilla, Andre; Chandler, Simon (2021-07-01).

3419: 3334: 3148:, and it needs to be enabled in the BIOS. Toshiba calls it 3113: 2719: 2686:

2.0 V, the device may pull up to 2 A of current.

2678: 901: 211: 84: 5191:"USB 3.0 SuperSpeed Update to Eliminate Need for Chargers" 3112:

2.0 is able to deliver 18 W at a higher voltage, and

719:

Pin configuration of Type-A and Type-B plugs viewed end-on

698:

inserts for Standard-A USB 3.0 connectors and plugs.

6391: 6188:. International Electrotechnical Commission. 2011-02-01. 3867:

Universal Serial Bus Cables and Connectors Class Document

2154:. The wires are enclosed in a further layer of shielding. 126:, format intended for desktop or portable equipment, the 63: 5471:

USB-C Power Delivery Hits 240W with Extended Power Range

4335:(Technical report). USB 3.0 Promoter Group. October 2022 4253:"Technical Introduction of the New USB Type-C Connector" 3206: 1082: 1067:

3.2 Gen 2x2, USB4 2x2, USB4 3x2, USB Gen 4 Asymmetric).

159:, and the connector attached to the cable is called the 6260: 5935:"Pros Seem to Outdo Cons in New Phone Charger Standard" 3232: 3055:-coded data channel that reduces the possibilities for 2613:

The limit to device power draw is stated in terms of a

2104:

since Type-B ports on devices are unpowered by default.

186:

section below for a more detailed summary description.

6360: 5023:"Minty Boost — The mysteries of Apple device charging" 4120:"Nice Micro-USB Adapter Apple, Now Sell It Everywhere" 3253: 2266:

before increasing the nominal voltage above 5 V.

1665:

No corresponding Micro-A receptacle was ever designed.

1059:): they contain a "eMarker" chip that responds to the 715: 122:

The three sizes of USB connectors are the default, or

91:, reducing the proliferation of proprietary chargers. 6343:"Nook Color charger uses special Micro-USB connector" 6241: 3903:(Press release). USB Implementers Forum. 2007-01-04. 3617:. USB Implementers Forum. August 2007. Archived from 2662:

Per the base specification, any device attached to a

2120: 5635:"Framework Laptop 16 Deep Dive - 180W Power Adapter" 5505:"Framework Laptop 16 Deep Dive - 180W Power Adapter" 5484:"Teardown of Brand New Apple 140W USB-C GaN Charger" 5359:, USB Implementers Forum, 2016-03-25, archived from 5045:"Modify a cheap USB charger to feed an iPod, iPhone" 4969:. USB Implementers Forum. 2009-04-15. Archived from 3963:. USB Implementers Forum. 2007-04-07. Archived from 3921: 3521:

Universal Serial Bus 3.0 Specification: Revision 1.0

3164:

over a drawing of a battery); the feature is called

2689: 2225:

Downstream USB connectors supply power at a nominal

6266: 4992:"Battery Charging v1.2 Spec and Adopters Agreement" 4645:"Battery Charging v1.2 Spec and Adopters Agreement" 3898:"Mobile phones to adopt new, smaller USB connector" 5228: 4311:Revision 1.1 (April 3, 2015), section 2.2, page 20 3807:"Deprecation of the Mini-A and Mini-AB Connectors" 3179: 846:details the mechanical characteristics of Micro-A 822:Micro-USB connectors, which were announced by the 539:In some sources D+ and D− are erroneously swapped. 6157:"Europe gets universal cellphone charger in 2010" 6084:(Press release). CTIA. 2009-04-22. Archived from 5962:(Press release). OTMP. 2007-09-17. Archived from 5459:USB-PD boosts USB-C power delivery to 240W at 48V 4984: 3606: 3604: 3602: 3600: 3598: 3399:(i.e., the current used to charge decoupling and 1091:USB connector mating table (images not to scale) 6627: 6109:(Press release). ITU. 2009-10-22. Archived from 4081:New EU standards for common mobile phone charger 3955: 3953: 2953: 2951: 2598: 2596: 2594: 2299: 2170:. SuperSpeed uses separate transmit and receive 5851:"China to enforce universal cell phone charger" 4168:"USB Type-C Connector Specifications Finalized" 3637:"USB Type-C Connector Specifications Finalized" 3497: 3495: 3493: 3491: 3489: 3487: 3485: 3272:International Electrotechnical Commission (IEC) 2806: 2584: 2582: 2580: 2578: 2290: 2232: 1657: 4967:"Battery Charging Specification, Revision 1.1" 4942:"Battery Charging Specification, Revision 1.2" 3595: 3514: 3512: 2945:current standard, not required on older cables 27:Communication connector using the USB protocol 6376: 6003:"Common Charging and Local Data Connectivity" 4685:"USB Power Delivery Specifications 2.0 and 3" 4161: 4159: 3950: 3108:Specification (BCS). For example, Qualcomm's 2998:Power rule of USB Power Delivery Revision 3.1 2948: 2591: 497: 183: 5985:"Agreement on Mobile phone Standard Charger" 5977: 5322:"USB Future Specifications Industry Reviews" 4494:"What is the Maximum Length of a USB Cable?" 3993:"OMTP Local Connectivity: Data Connectivity" 3860: 3858: 3840:. USB IF Compliance Updates. December 2009. 3482: 3284: 2762: 2748: 2575: 2316:Worst-case voltage drop topology of a USB 3. 2150:conductors are twisted together in a double 2034: 1745: 1616: 1186: 6107:"Universal Phone Charger Standard Approved" 4936: 4934: 4932: 4930: 4270: 4245: 4224:"USB Type-C: One Cable to Connect Them All" 4194:"USB-C vs. USB 3.1: What's the difference?" 3757:"USB: a neat package with a few loose ends" 3687: 3685: 3683: 3509: 3136:A yellow USB port denoting sleep-and-charge 2229:via the V_BUS pin to upstream USB devices. 1659: 965: 676: 6383: 6369: 5987:(Press release). GSM World. Archived from 5160: 5158: 5156: 5127: 5125: 5096: 5094: 5017: 5015: 4185: 4156: 3801: 3799: 6237: 6235: 6032:"Universal Charging Solution ~ GSM World" 5373: 4321: 4319: 4317: 3855: 3566: 3537: 3535: 3524:. 2011-06-06. p. 531. Archived from 3290: 3127: 3024: 3015: 2674:port detection via resistive mechanisms. 2324: 740:The maximum allowed cross-section of the 5062: 5060: 5058: 4959: 4927: 4749:"Universal Serial Bus 1.1 Specification" 4402: 4028:(press release). Pressinfo. 2009-10-22. 3980:as defined in the USB OTG specification. 3754: 3680: 3131: 3081: 2993: 2713: 2311: 2236: 2137: 1026: 1014: 956: 915: 872:In Europe, micro-USB became the defined 751: 714: 558: 550: 535: 533: 283: 272: 145: 98: 31: 5908:Lam, Crystal; Liu, Harry (2007-10-22). 5848: 5521: 5188: 5153: 5122: 5091: 5012: 4712: 4215: 3796: 3371: 2632: 2391:High-power SuperSpeed (USB 3.0) device 1060: 141: 14: 6628: 6232: 5907: 5407: 5108:, USB Implementers Forum, 2016-03-25, 4997:. USB Implementers Forum. 2012-03-15. 4944:. USB Implementers Forum. 2012-03-15. 4520: 4518: 4434:"What Is the USB 3.0 Cable Difference" 4314: 4191: 3698:. USB Implementers Forum. 2007-04-04. 3532: 3195:As of 14 June 2007, all new 2967: 2965: 2963: 2943:label required on both plug bodies by 2778: 2756: 2363:Low-power SuperSpeed (USB 3.0) device 756:Mini-A (left) and Mini-B (right) plugs 710: 6364: 5473:. Ganesh T S, Anandtech. May 28, 2021 5461:. Nick Flaherty, EENews. May 28, 2021 5055: 4679: 4677: 4675: 4276: 4165: 3447:systems to power peripherals such as 3248:International Telecommunication Union 3207:OMTP/GSMA Universal Charging Solution 3119: 2709: 1083:Host and device interface receptacles 912:connectors and backward compatibility 867:International Telecommunication Union 530: 6134:. EU: EC. 2009-06-29. Archived from 5390:. USB-IF. 2016-10-20. Archived from 4436:. Hantat. 2009-05-18. Archived from 4375:"Proprietary Cables vs Standard USB" 3039:-coded transmission channel on the V 2974: 278:Standard, Mini-, and Micro-USB plugs 5068:"USB Power Delivery — Introduction" 4553: 4515: 4221: 3755:Quinnell, Richard A. (1996-10-24). 3279:Radio Equipment Directive 2022/2380 3266:. The specification was called the 3254:EU smartphone power supply standard 2960: 2934: 2566: 783: 243:USB 2.0 uses two wires for power (V 24: 4672: 4654:. 2015-03-15. Table 5-1 Voltages. 3503:Universal Serial Bus Specification 2983:label required on both plug bodies 2121:Proprietary connectors and formats 884:equipped with Apple's proprietary 747: 701: 25: 6647: 4758:. 1998-09-23. pp. 150, 158. 3634: 3380:, and generally for devices with 2700:Accessory charging adapters (ACA) 2690:Accessory charging adapters (ACA) 2162:(typically unshielded) to reduce 2142:A USB twisted pair, in which the 503:"A" plug (host): connected to GND 6335: 6310: 6285: 6203: 6178: 6149: 6124: 6099: 6074: 6049: 6024: 5995: 5952: 5927: 5901: 5878:The Chinese technical standard: 5872: 5842: 5818: 5051:from the original on 2011-10-07. 4616:"USB ECN USB 2.0 VBUS Max Limit" 4130:from the original on 2012-08-26. 3792:from the original on 2017-02-07. 3337:Flash Charge, are also known as 2759: 2727:USB PD Rev. 1.0 source profiles 1998: 1957: 1916: 1879: 1838: 1799: 1758: 1737: 1728: 1719: 1710: 1701: 1692: 1683: 1574: 1533: 1492: 1451: 1410: 1369: 1326: 1285: 1242: 1199: 1178: 1169: 1160: 1151: 1142: 1133: 1124: 1115: 1106: 853: 806: 792: 506:"B" plug (device): not connected 493: 249:differential serial data signals 223: 83:and devices requiring up to 240 6417: 6324:from the original on 2011-12-10 6299:from the original on 2014-12-24 6192:from the original on 2012-01-03 6167:from the original on 2010-08-18 6059:. Planet Analog. Archived from 5916:from the original on 2014-05-14 5861:from the original on 2007-09-29 5794: 5783:from the original on 2014-12-14 5765: 5754:from the original on 2013-11-08 5736: 5711: 5700:from the original on 2014-02-19 5680: 5669:from the original on 2016-09-17 5651: 5627: 5605: 5591: 5567: 5543: 5497: 5476: 5464: 5452: 5431: 5420:from the original on 2017-07-30 5410:"USB Power Delivery 2.0 vs 3.0" 5401: 5345: 5334:from the original on 2014-07-29 5314: 5296: 5285:from the original on 2012-06-19 5271: 5257: 5246:from the original on 2013-10-22 5217:from the original on 2013-01-20 5197: 5182: 5143:from the original on 2024-05-26 5112:from the original on 2024-05-26 5037: 5001:from the original on 2014-10-06 4948:from the original on 2021-03-10 4916:from the original on 2014-02-03 4898: 4869: 4840: 4829:from the original on 2013-09-10 4808: 4797:from the original on 2013-09-10 4776: 4765:from the original on 2015-01-02 4741: 4730:from the original on 2012-06-19 4701:from the original on 2021-11-03 4661:from the original on 2021-11-03 4637: 4626:from the original on 2021-11-03 4608: 4597:from the original on 2021-11-03 4573: 4562:from the original on 2016-12-20 4547: 4504:from the original on 2017-12-01 4486: 4451: 4426: 4415:from the original on 2013-11-03 4396: 4367: 4346: 4302: 4291:from the original on 2014-12-18 4204:from the original on 2015-04-11 4174:from the original on 2014-12-28 4152:from the original on 2017-06-26 4134: 4112: 4108:from the original on 2009-07-04 4092: 4088:from the original on 2011-01-03 4072: 4061:from the original on 2011-03-19 4043: 4032:from the original on 2009-11-05 4014: 3985: 3939:from the original on 2024-05-27 3910:from the original on 2007-01-08 3890: 3880:from the original on 2015-04-27 3844:from the original on 2011-07-20 3830: 3778: 3767:from the original on 2013-05-23 3748: 3716: 3705:from the original on 2015-11-15 3647:from the original on 2017-03-18 3584:from the original on 2014-04-21 3244:CTIA – The Wireless Association 3180:Mobile device charger standards 2557: 2548: 920:USB 3.0 Micro-B SuperSpeed plug 4459:"USB Cable Length Limitations" 3658: 3628: 3367:Samsung Adaptive Fast Charging 2824:USB Power Delivery rev. 2.0/3. 2718:The USB Type-C Charging logo ( 2531:Power Delivery 3.1 EPR Type-C 2517:Power Delivery 3.1 EPR Type-C 2503:Power Delivery 3.1 EPR Type-C 2489:Power Delivery 3.0 SPR Type-C 624:Type-A or Type-B, SuperSpeed+ 13: 1: 6007:Open Mobile Terminal Platform 3997:Open Mobile Terminal Platform 3475: 3432: 3213:Open Mobile Terminal Platform 860:Open Mobile Terminal Platform 611:Type-A or Type-B, SuperSpeed 500:ID distinguishes cable ends: 197: 171:to represent the receptacle. 94: 6424: 6349:. 2011-07-03. Archived from 6217:. 2022-04-20. Archived from 6009:. 2009-02-11. Archived from 5890:(in Chinese). Archived from 5773:"USB Sleep-and-Charge Ports" 5408:Waters, Deric (2016-07-14). 5279:"USB 3.1 Specification" 5189:Burgess, Rick (2013-04-22). 5073:. 2012-07-16. Archived from 5029:. 2011-05-17. Archived from 4854:. 2010-06-16. Archived from 4468:. 2010-11-03. Archived from 4403:Friedman, Lex (2013-02-25). 4381:. 2008-04-30. Archived from 3999:. 2007-09-17. Archived from 3548:. 2000-10-20. Archived from 3268:common external power supply 2233:Voltage tolerance and limits 874:common external power supply 316:SuperSpeed transmit+ (SSTx+) 313:SuperSpeed transmit− (SSTx−) 262:, which makes it similar to 62:The initial versions of the 7: 6034:. GSM world. Archived from 5912:. Wireless Net DesignLine. 5688:"Toshiba NB200 User Manual" 5441:(Press release). 2018-01-09 4906:"USB-IF Compliance Updates" 4363:. Revision 1.1. 2012-05-10. 4192:Hruska, Joel (2015-03-13). 4166:Howse, Brett (2014-08-12). 3458: 3190: 2971:USB PD Extended Power Range 836:personal digital assistants 424:Mini/Micro-A and -B pinout 325:SuperSpeed receive+ (SSRx+) 322:SuperSpeed receive− (SSRx−) 167:to represent the plug, and 10: 6652: 6431: 5139:, USB Implementers Forum, 4277:Smith, Ryan (2014-09-22). 3436: 3388:. Such devices can use an 3199:applying for a license in 3183: 2694:Portable devices having a 2405:Battery Charging (BC) 1.2 2218: 2133: 1656: 1008: 969: 943:to those of USB 1.0. 923: 236: 232: 6577: 6546: 6489: 6443: 6398: 4581:"USB Type-C Revision 1.0" 4104:(press release), Europa, 4084:(press release), Europa, 3285:Faster-charging standards 2930: 2909: 2903: 2857: 2851: 2802: 2544: 682: 666: 664: 647: 628: 615: 598: 585: 583: 572: 546: 394: 343: 6564:USB flash drive security 6244:"What Is Fast Charging?" 5744:"USB PowerShare Feature" 5719:"USB PowerShare Feature" 5533:, USB Implementers Forum 5172:, USB Implementers Forum 4556:"USB 3.0 Developers FAQ" 4222:Ngo, Dong (2014-08-22). 3297:Such standards include: 2890:5 A, or 100 W 2812:Default start-up profile 2664:standard downstream port 2650:charging downstream port 2214: 1004: 966:USB On-The-Go connectors 184:USB On-The-Go connectors 6390: 3211:In September 2007, the 2798:5.0 A, 100 W 2654:dedicated charging port 2652:(CDP), with data, or a 2475:Power Delivery 3.0 SPR 2461:Power Delivery 3.0 SPR 2447:Power Delivery 3.0 SPR 2433:Power Delivery 3.0 SPR 961:USB 3.0 Standard-B plug 869:(ITU) in October 2009. 568:Usual USB color-coding 289:Micro-B SuperSpeed plug 6404:USB Implementers Forum 5849:Cai Yan (2007-05-31). 4588:USB 3.0 Promoter Group 4333:USB Implementers Forum 4057:. Europa. 2010-12-29. 3137: 3128:Sleep-and-charge ports 3087: 3067:-powered accessories. 2999: 2795:5.0 A, 60 W 2787:3.0 A, 60 W 2779:3.0 A, 36 W 2771:1.5 A, 18 W 2757:2.0 A, 10 W 2723: 2325:Allowable current draw 2321: 2242: 2155: 2077:Existing for specific 2074:Proprietary, hazardous 2039: 1750: 1621: 1191: 1032: 1024: 962: 921: 757: 720: 634:Receptacles and plugs 621:Receptacles and plugs 608:Receptacles and plugs 591:Receptacles and plugs 564: 556: 329: 281: 247:and GND), and two for 151: 108: 59: 6293:"Part 2 - Electrical" 5659:"ThinkPad Ultra Dock" 3574:"USB connector guide" 3453:credit card terminals 3411:, and even miniature 3390:external power supply 3135: 3085: 2997: 2957:Electronically marked 2717: 2633:USB battery charging 2315: 2240: 2141: 2038: 1749: 1620: 1190: 1030: 1018: 960: 919: 886:30-pin dock connector 755: 718: 562: 554: 333:Type-A and -B pinout 287: 276: 149: 102: 35: 6320:. The Mac Observer. 5802:"USB Charge Manager" 5381:"USB Power Delivery" 5265:"USB Power Delivery" 3562:– via USB.org. 3372:Non-standard devices 3291:USB Battery Charging 3150:USB Sleep-and-Charge 3106:USB Battery Charging 3025:USB Battery Charging 3016:USB Battery Charging 2638:USB Battery Charging 2330:USB power standards 2221:USB hub § Power 2079:proprietary purposes 926:USB 3.0 § Connectors 711:Standard connectors 189:There are so-called 142:Connector properties 6295:. MQP Electronics. 6215:European Parliament 5353:"A. Power Profiles" 4379:anythingbutipod.com 3378:optical disc drives 3260:European Commission 3172:calls this feature 2829: 2728: 2710:USB Power Delivery 2331: 2083:Easy Transfer Cable 1674: 1092: 892:. according to the 890:Lightning connector 842:disconnection. The 569: 425: 334: 6347:barnesandnoble.com 5830:support.lenovo.com 5693:. UK. 2009-03-01. 5236:"Edison's revenge" 4910:Compliance.usb.org 3470:USB communications 3424:Barnes & Noble 3258:In June 2009, the 3138: 3120:Charge controllers 3088: 3004:USB Power Delivery 3000: 2823: 2726: 2724: 2722:20 Gbps port) 2377:High-power device 2329: 2322: 2243: 2172:differential pairs 2156: 2040: 1751: 1672: 1622: 1572:USB 3.0 Micro-B SS 1192: 1090: 1061:USB Power Delivery 1033: 1025: 983:-AB receptacles.) 963: 922: 758: 721: 656:Type-A or Type-C, 637:Type-A or Type-B, 567: 565: 557: 423: 332: 330: 282: 258:data transfers at 152: 111:Unlike other data 109: 60: 6623: 6622: 6590:Ethernet over USB 6585:Enhanced mini-USB 4466:cablesplususa.com 3401:filter capacitors 3186:Universal charger 2992: 2991: 2821: 2820: 2648:, which may be a 2611: 2610: 2349:Low-power device 2068: 2067: 1673:USB cables table 1670: 1669: 1666: 1064:Discover Identity 1050:biphase mark code 952:USB cables matrix 784:Micro connectors 695: 694: 688:Receptacles only 672:Receptacles only 642:Quick Charge (QC) 594:Type-A or Type-B 526: 525: 421: 420: 239:USB 3.0 § Pinouts 16:(Redirected from 6643: 6434: 6427: 6420: 6413: 6406: 6385: 6378: 6371: 6362: 6361: 6355: 6354: 6339: 6333: 6332: 6330: 6329: 6314: 6308: 6307: 6305: 6304: 6289: 6283: 6282: 6280: 6279: 6264: 6258: 6257: 6255: 6254: 6239: 6230: 6229: 6227: 6226: 6207: 6201: 6200: 6198: 6197: 6182: 6176: 6175: 6173: 6172: 6153: 6147: 6146: 6144: 6143: 6128: 6122: 6121: 6119: 6118: 6103: 6097: 6096: 6094: 6093: 6078: 6072: 6071: 6069: 6068: 6053: 6047: 6046: 6044: 6043: 6028: 6022: 6021: 6019: 6018: 5999: 5993: 5992: 5981: 5975: 5974: 5972: 5971: 5956: 5950: 5949: 5947: 5946: 5931: 5925: 5924: 5922: 5921: 5905: 5899: 5898: 5896: 5885: 5876: 5870: 5869: 5867: 5866: 5846: 5840: 5839: 5837: 5836: 5822: 5816: 5815: 5813: 5812: 5798: 5792: 5791: 5789: 5788: 5769: 5763: 5762: 5760: 5759: 5740: 5734: 5733: 5731: 5730: 5715: 5709: 5708: 5706: 5705: 5699: 5692: 5684: 5678: 5677: 5675: 5674: 5655: 5649: 5648: 5646: 5645: 5631: 5625: 5624: 5623: 5622: 5609: 5603: 5602: 5595: 5589: 5588: 5586: 5585: 5571: 5565: 5564: 5562: 5561: 5547: 5541: 5540: 5539: 5538: 5525: 5519: 5518: 5516: 5515: 5501: 5495: 5494: 5492: 5491: 5480: 5474: 5468: 5462: 5456: 5450: 5449: 5447: 5446: 5435: 5429: 5428: 5426: 5425: 5405: 5399: 5398: 5396: 5385: 5377: 5371: 5370: 5369: 5368: 5349: 5343: 5342: 5340: 5339: 5333: 5326: 5318: 5312: 5311: 5300: 5294: 5293: 5291: 5290: 5275: 5269: 5268: 5261: 5255: 5254: 5252: 5251: 5232: 5226: 5225: 5223: 5222: 5216: 5209: 5201: 5195: 5194: 5186: 5180: 5179: 5178: 5177: 5166:"10 Power Rules" 5162: 5151: 5150: 5149: 5148: 5133:"10 Power Rules" 5129: 5120: 5119: 5118: 5117: 5102:"10 Power Rules" 5098: 5089: 5088: 5086: 5085: 5079: 5072: 5064: 5053: 5052: 5041: 5035: 5034: 5019: 5010: 5009: 5007: 5006: 4996: 4988: 4982: 4981: 4979: 4978: 4963: 4957: 4956: 4954: 4953: 4938: 4925: 4924: 4922: 4921: 4902: 4896: 4895: 4893: 4892: 4883:. Archived from 4873: 4867: 4866: 4864: 4863: 4844: 4838: 4837: 4835: 4834: 4820: 4812: 4806: 4805: 4803: 4802: 4788: 4780: 4774: 4773: 4771: 4770: 4764: 4753: 4745: 4739: 4738: 4736: 4735: 4716: 4710: 4709: 4707: 4706: 4700: 4689: 4681: 4670: 4669: 4667: 4666: 4660: 4649: 4641: 4635: 4634: 4632: 4631: 4612: 4606: 4605: 4603: 4602: 4596: 4585: 4577: 4571: 4570: 4568: 4567: 4551: 4545: 4544: 4542: 4541: 4532:. Archived from 4522: 4513: 4512: 4510: 4509: 4490: 4484: 4483: 4481: 4480: 4474: 4463: 4455: 4449: 4448: 4446: 4445: 4430: 4424: 4423: 4421: 4420: 4400: 4394: 4393: 4391: 4390: 4371: 4365: 4364: 4358: 4350: 4344: 4343: 4341: 4340: 4323: 4312: 4306: 4300: 4299: 4297: 4296: 4274: 4268: 4267: 4265: 4264: 4255:. Archived from 4249: 4243: 4242: 4240: 4239: 4230:. Archived from 4219: 4213: 4212: 4210: 4209: 4189: 4183: 4182: 4180: 4179: 4163: 4154: 4153: 4138: 4132: 4131: 4116: 4110: 4109: 4096: 4090: 4089: 4076: 4070: 4069: 4067: 4066: 4047: 4041: 4040: 4038: 4037: 4018: 4012: 4011: 4009: 4008: 3989: 3983: 3982: 3976: 3975: 3969: 3957: 3948: 3947: 3945: 3944: 3925: 3919: 3918: 3916: 3915: 3909: 3902: 3894: 3888: 3887: 3886: 3885: 3879: 3872: 3862: 3853: 3852: 3850: 3849: 3834: 3828: 3827: 3825: 3824: 3818: 3811: 3803: 3794: 3793: 3782: 3776: 3775: 3773: 3772: 3752: 3746: 3745: 3743: 3742: 3736: 3730:. Archived from 3720: 3714: 3713: 3711: 3710: 3704: 3697: 3689: 3678: 3677: 3672:. Archived from 3662: 3656: 3655: 3653: 3652: 3632: 3626: 3625: 3623: 3616: 3608: 3593: 3592: 3590: 3589: 3570: 3564: 3563: 3561: 3560: 3554: 3547: 3539: 3530: 3529: 3516: 3507: 3506: 3499: 3455:, and printers. 2984: 2978: 2972: 2969: 2958: 2955: 2946: 2938: 2830: 2822: 2813: 2810: 2729: 2725: 2603: 2600: 2589: 2586: 2573: 2570: 2564: 2561: 2555: 2552: 2332: 2328: 2306: 2303: 2297: 2294: 2272: 2228: 2203: 2201: 2200: 2193: 2189: 2109: 2100:OTG non-standard 2099: 2090: 2073: 2002: 1961: 1920: 1883: 1842: 1803: 1762: 1741: 1732: 1723: 1714: 1705: 1696: 1687: 1678:Plugs, each end 1675: 1671: 1664: 1663: 1578: 1537: 1496: 1455: 1414: 1373: 1330: 1289: 1246: 1203: 1182: 1173: 1164: 1155: 1146: 1137: 1128: 1119: 1110: 1093: 1089: 1071:line and legacy 992:pull-up resistor 862:(OMTP) in 2007. 810: 796: 770:tablet computers 748:Mini connectors 677:sleep-and-charge 675:High-current or 570: 566: 540: 537: 426: 422: 335: 331: 81:battery charging 21: 6651: 6650: 6646: 6645: 6644: 6642: 6641: 6640: 6626: 6625: 6624: 6619: 6573: 6542: 6528:Human interface 6485: 6439: 6430: 6423: 6416: 6409: 6402: 6394: 6389: 6359: 6358: 6341: 6340: 6336: 6327: 6325: 6316: 6315: 6311: 6302: 6300: 6291: 6290: 6286: 6277: 6275: 6265: 6261: 6252: 6250: 6240: 6233: 6224: 6222: 6209: 6208: 6204: 6195: 6193: 6184: 6183: 6179: 6170: 6168: 6155: 6154: 6150: 6141: 6139: 6130: 6129: 6125: 6116: 6114: 6105: 6104: 6100: 6091: 6089: 6080: 6079: 6075: 6066: 6064: 6055: 6054: 6050: 6041: 6039: 6030: 6029: 6025: 6016: 6014: 6001: 6000: 5996: 5983: 5982: 5978: 5969: 5967: 5958: 5957: 5953: 5944: 5942: 5933: 5932: 5928: 5919: 5917: 5906: 5902: 5894: 5883: 5879: 5877: 5873: 5864: 5862: 5847: 5843: 5834: 5832: 5824: 5823: 5819: 5810: 5808: 5806:packardbell.com 5800: 5799: 5795: 5786: 5784: 5771: 5770: 5766: 5757: 5755: 5742: 5741: 5737: 5728: 5726: 5717: 5716: 5712: 5703: 5701: 5697: 5690: 5686: 5685: 5681: 5672: 5670: 5657: 5656: 5652: 5643: 5641: 5633: 5632: 5628: 5620: 5618: 5611: 5610: 5606: 5597: 5596: 5592: 5583: 5581: 5573: 5572: 5568: 5559: 5557: 5549: 5548: 5544: 5536: 5534: 5527: 5526: 5522: 5513: 5511: 5503: 5502: 5498: 5489: 5487: 5482: 5481: 5477: 5469: 5465: 5457: 5453: 5444: 5442: 5437: 5436: 5432: 5423: 5421: 5406: 5402: 5394: 5383: 5379: 5378: 5374: 5366: 5364: 5351: 5350: 5346: 5337: 5335: 5331: 5324: 5320: 5319: 5315: 5302: 5301: 5297: 5288: 5286: 5277: 5276: 5272: 5263: 5262: 5258: 5249: 5247: 5234: 5233: 5229: 5220: 5218: 5214: 5207: 5203: 5202: 5198: 5187: 5183: 5175: 5173: 5164: 5163: 5154: 5146: 5144: 5131: 5130: 5123: 5115: 5113: 5100: 5099: 5092: 5083: 5081: 5077: 5070: 5066: 5065: 5056: 5043: 5042: 5038: 5021: 5020: 5013: 5004: 5002: 4994: 4990: 4989: 4985: 4976: 4974: 4965: 4964: 4960: 4951: 4949: 4940: 4939: 4928: 4919: 4917: 4904: 4903: 4899: 4890: 4888: 4875: 4874: 4870: 4861: 4859: 4846: 4845: 4841: 4832: 4830: 4818: 4814: 4813: 4809: 4800: 4798: 4786: 4782: 4781: 4777: 4768: 4766: 4762: 4751: 4747: 4746: 4742: 4733: 4731: 4718: 4717: 4713: 4704: 4702: 4698: 4687: 4683: 4682: 4673: 4664: 4662: 4658: 4647: 4643: 4642: 4638: 4629: 4627: 4614: 4613: 4609: 4600: 4598: 4594: 4583: 4579: 4578: 4574: 4565: 4563: 4552: 4548: 4539: 4537: 4524: 4523: 4516: 4507: 4505: 4492: 4491: 4487: 4478: 4476: 4472: 4461: 4457: 4456: 4452: 4443: 4441: 4432: 4431: 4427: 4418: 4416: 4401: 4397: 4388: 4386: 4373: 4372: 4368: 4356: 4352: 4351: 4347: 4338: 4336: 4325: 4324: 4315: 4307: 4303: 4294: 4292: 4275: 4271: 4262: 4260: 4251: 4250: 4246: 4237: 4235: 4220: 4216: 4207: 4205: 4190: 4186: 4177: 4175: 4164: 4157: 4140: 4139: 4135: 4118: 4117: 4113: 4098: 4097: 4093: 4078: 4077: 4073: 4064: 4062: 4049: 4048: 4044: 4035: 4033: 4020: 4019: 4015: 4006: 4004: 3991: 3990: 3986: 3973: 3971: 3967: 3959: 3958: 3951: 3942: 3940: 3933:pinoutguide.com 3927: 3926: 3922: 3913: 3911: 3907: 3900: 3896: 3895: 3891: 3883: 3881: 3877: 3870: 3864: 3863: 3856: 3847: 3845: 3836: 3835: 3831: 3822: 3820: 3816: 3809: 3805: 3804: 3797: 3784: 3783: 3779: 3770: 3768: 3753: 3749: 3740: 3738: 3734: 3722: 3721: 3717: 3708: 3706: 3702: 3695: 3691: 3690: 3681: 3664: 3663: 3659: 3650: 3648: 3633: 3629: 3621: 3614: 3610: 3609: 3596: 3587: 3585: 3572: 3571: 3567: 3558: 3556: 3552: 3545: 3541: 3540: 3533: 3518: 3517: 3510: 3501: 3500: 3483: 3478: 3461: 3449:barcode readers 3441: 3435: 3409:vacuum cleaners 3374: 3287: 3256: 3240:GSM Association 3209: 3193: 3188: 3182: 3130: 3122: 3077: 3066: 3063:currents, and V 3062: 3057:RF interference 3042: 3027:specification. 2988: 2987: 2979: 2975: 2970: 2961: 2956: 2949: 2944: 2939: 2935: 2838:cable required 2837: 2817: 2816: 2811: 2807: 2712: 2692: 2635: 2607: 2606: 2601: 2592: 2587: 2576: 2571: 2567: 2562: 2558: 2553: 2549: 2327: 2310: 2309: 2304: 2300: 2295: 2291: 2235: 2226: 2223: 2217: 2198: 2196: 2195: 2191: 2187: 2136: 2123: 2107: 2097: 2088: 2071: 2024: 1997: 1996:USB 3.0 Micro-B 1984: 1979: 1968: 1956: 1943: 1938: 1930: 1915: 1893: 1878: 1862: 1857: 1846: 1837: 1824: 1807: 1798: 1776: 1771: 1766: 1757: 1736: 1735:USB 3.0 Micro-B 1727: 1718: 1709: 1700: 1691: 1682: 1603: 1573: 1532: 1491: 1450: 1409: 1368: 1340: 1325: 1284: 1250: 1241: 1210: 1198: 1177: 1176:USB 3.0 Micro-B 1168: 1159: 1150: 1141: 1132: 1123: 1114: 1105: 1101: 1098: 1085: 1078: 1047: 1013: 1007: 974: 968: 928: 914: 856: 838:, and cameras. 820: 819: 818: 817: 816: 814: 811: 803: 802: 800: 797: 786: 762:digital cameras 750: 726:downstream port 713: 704: 702:Connector types 588:Black or white 549: 544: 543: 538: 531: 449: 358: 328: 297: 266:or single-lane 246: 241: 235: 226: 200: 144: 97: 58: 55:Standard-B plug 52:Standard-A plug 28: 23: 22: 15: 12: 11: 5: 6649: 6639: 6638: 6621: 6620: 6618: 6617: 6612: 6607: 6605:Serial adapter 6602: 6597: 6592: 6587: 6581: 6579: 6575: 6574: 6572: 6571: 6566: 6561: 6556: 6550: 6548: 6544: 6543: 6541: 6540: 6538:Communications 6535: 6530: 6525: 6524: 6523: 6513: 6512: 6511: 6506: 6495: 6493: 6491:Device classes 6487: 6486: 6484: 6483: 6478: 6473: 6468: 6463: 6458: 6453: 6447: 6445: 6441: 6440: 6438: 6437: 6436: 6435: 6428: 6421: 6407: 6399: 6396: 6395: 6388: 6387: 6380: 6373: 6365: 6357: 6356: 6353:on 2012-02-11. 6334: 6309: 6284: 6273:Digital Trends 6259: 6231: 6202: 6177: 6163:. 2009-06-13. 6148: 6123: 6098: 6073: 6048: 6023: 5994: 5991:on 2009-02-17. 5976: 5951: 5926: 5900: 5897:on 2011-05-15. 5871: 5841: 5817: 5793: 5764: 5750:. 2013-06-05. 5735: 5710: 5679: 5650: 5626: 5604: 5590: 5566: 5542: 5520: 5496: 5475: 5463: 5451: 5430: 5400: 5397:on 2016-12-20. 5372: 5344: 5313: 5295: 5270: 5256: 5242:. 2013-10-19. 5227: 5210:. 2012-07-18. 5196: 5181: 5152: 5121: 5090: 5054: 5047:. 2011-10-05. 5036: 5033:on 2012-03-28. 5011: 4983: 4958: 4926: 4912:. 2011-09-01. 4897: 4881:hitachigst.com 4868: 4839: 4825:. 2000-04-27. 4807: 4793:. 2000-04-27. 4775: 4740: 4711: 4699:(PDF (Zipped)) 4694:. 2021-10-26. 4688:(PDF (Zipped)) 4671: 4659:(PDF (Zipped)) 4648:(PDF (Zipped)) 4636: 4622:. 2021-11-03. 4607: 4590:. 2021-03-01. 4572: 4554:Axelson, Jan. 4546: 4514: 4485: 4450: 4425: 4395: 4366: 4345: 4313: 4301: 4269: 4244: 4214: 4184: 4155: 4148:, 2012-11-03, 4133: 4126:. 2011-10-05. 4111: 4091: 4071: 4055:Press Releases 4042: 4013: 3984: 3949: 3935:. 2012-11-16. 3920: 3889: 3854: 3829: 3795: 3777: 3747: 3715: 3679: 3676:on 2014-06-17. 3657: 3635:Howse, Brett. 3627: 3624:on 2014-06-11. 3594: 3565: 3531: 3528:on 2013-12-30. 3508: 3480: 3479: 3477: 3474: 3473: 3472: 3467: 3460: 3457: 3437:Main article: 3434: 3431: 3397:inrush current 3373: 3370: 3369: 3368: 3365: 3358: 3331: 3325: 3317: 3311: 3305: 3286: 3283: 3264:European Union 3255: 3252: 3208: 3205: 3192: 3189: 3184:Main article: 3181: 3178: 3129: 3126: 3121: 3118: 3075: 3064: 3060: 3051:low-frequency 3040: 2990: 2989: 2986: 2985: 2973: 2959: 2947: 2932: 2931: 2928: 2927: 2924: 2920: 2919: 2916: 2912: 2911: 2908: 2905: 2902: 2898: 2897: 2894: 2891: 2888: 2884: 2883: 2880: 2876: 2875: 2872: 2868: 2867: 2864: 2860: 2859: 2856: 2853: 2850: 2846: 2845: 2842: 2839: 2834: 2819: 2818: 2815: 2814: 2804: 2803: 2800: 2799: 2796: 2793: 2789: 2788: 2785: 2781: 2780: 2777: 2773: 2772: 2769: 2765: 2764: 2761: 2758: 2755: 2751: 2750: 2747: 2743: 2742: 2739: 2736: 2733: 2711: 2708: 2691: 2688: 2634: 2631: 2609: 2608: 2605: 2604: 2590: 2574: 2565: 2556: 2546: 2545: 2542: 2541: 2538: 2535: 2532: 2528: 2527: 2524: 2521: 2518: 2514: 2513: 2510: 2507: 2504: 2500: 2499: 2496: 2493: 2490: 2486: 2485: 2482: 2479: 2476: 2472: 2471: 2468: 2465: 2462: 2458: 2457: 2454: 2451: 2448: 2444: 2443: 2440: 2437: 2434: 2430: 2429: 2426: 2423: 2420: 2416: 2415: 2412: 2409: 2406: 2402: 2401: 2398: 2395: 2392: 2388: 2387: 2384: 2381: 2378: 2374: 2373: 2370: 2367: 2364: 2360: 2359: 2356: 2353: 2350: 2346: 2345: 2342: 2339: 2336: 2335:Specification 2326: 2323: 2308: 2307: 2298: 2288: 2287: 2234: 2231: 2216: 2213: 2192:1.6 ns/ft 2135: 2132: 2122: 2119: 2118: 2117: 2113: 2105: 2101: 2095: 2092: 2086: 2075: 2066: 2065: 2062: 2059: 2056: 2053: 2050: 2047: 2044: 2041: 2030: 2029: 2026: 2021: 2018: 2015: 2012: 2009: 2006: 2003: 1993: 1992: 1989: 1986: 1981: 1976: 1973: 1970: 1965: 1962: 1952: 1951: 1948: 1945: 1940: 1935: 1932: 1927: 1924: 1921: 1911: 1910: 1907: 1904: 1901: 1898: 1895: 1890: 1887: 1884: 1874: 1873: 1870: 1867: 1864: 1859: 1854: 1851: 1848: 1843: 1833: 1832: 1829: 1826: 1821: 1818: 1815: 1812: 1809: 1804: 1794: 1793: 1790: 1787: 1784: 1781: 1778: 1773: 1768: 1763: 1753: 1752: 1742: 1733: 1724: 1715: 1706: 1697: 1688: 1679: 1668: 1667: 1654: 1653: 1650: 1647: 1644: 1641: 1638: 1635: 1632: 1629: 1626: 1623: 1612: 1611: 1608: 1605: 1600: 1597: 1594: 1591: 1588: 1585: 1582: 1579: 1569: 1568: 1565: 1562: 1559: 1556: 1553: 1550: 1547: 1544: 1541: 1538: 1528: 1527: 1524: 1521: 1518: 1515: 1512: 1509: 1506: 1503: 1500: 1497: 1487: 1486: 1483: 1480: 1477: 1474: 1471: 1468: 1465: 1462: 1459: 1456: 1446: 1445: 1442: 1439: 1436: 1433: 1430: 1427: 1424: 1421: 1418: 1415: 1405: 1404: 1401: 1398: 1395: 1392: 1389: 1386: 1383: 1380: 1377: 1374: 1364: 1363: 1360: 1357: 1354: 1351: 1348: 1345: 1342: 1337: 1334: 1331: 1321: 1320: 1317: 1314: 1311: 1308: 1305: 1302: 1299: 1296: 1293: 1290: 1280: 1279: 1276: 1273: 1270: 1267: 1264: 1261: 1258: 1255: 1252: 1247: 1237: 1236: 1233: 1230: 1227: 1224: 1221: 1218: 1215: 1212: 1207: 1204: 1194: 1193: 1183: 1174: 1165: 1156: 1147: 1138: 1129: 1120: 1111: 1102: 1099: 1096: 1084: 1081: 1076: 1045: 1009:Main article: 1006: 1003: 970:Main article: 967: 964: 913: 906: 855: 852: 812: 805: 804: 798: 791: 790: 789: 788: 787: 785: 782: 749: 746: 738: 737: 729: 712: 709: 703: 700: 693: 692: 689: 686: 683: 680: 679: 673: 670: 669:Yellow or red 667: 665: 662: 661: 654: 651: 648: 645: 644: 635: 632: 629: 626: 625: 622: 619: 616: 613: 612: 609: 606: 599: 596: 595: 592: 589: 586: 584: 581: 580: 577: 574: 548: 545: 542: 541: 528: 527: 524: 523: 522:Signal ground 520: 517: 514: 510: 509: 508: 507: 504: 495: 492: 489: 485: 484: 481: 478: 475: 471: 470: 467: 464: 461: 457: 456: 453: 450: 447: 444: 440: 439: 436: 433: 430: 419: 418: 415: 412: 409: 404: 400: 399: 396: 393: 390: 386: 385: 382: 379: 376: 373: 369: 368: 365: 362: 359: 356: 353: 349: 348: 345: 342: 339: 327: 326: 323: 320: 317: 314: 311: 308: 307:ID (On-The-Go) 305: 302: 299: 295: 291: 244: 234: 231: 225: 222: 199: 196: 143: 140: 103:Comparison of 96: 93: 57: 56: 53: 50: 47: 44: 41: 37: 26: 9: 6: 4: 3: 2: 6648: 6637: 6634: 6633: 6631: 6616: 6613: 6611: 6608: 6606: 6603: 6601: 6598: 6596: 6593: 6591: 6588: 6586: 6583: 6582: 6580: 6576: 6570: 6567: 6565: 6562: 6560: 6557: 6555: 6554:Juice jacking 6552: 6551: 6549: 6545: 6539: 6536: 6534: 6531: 6529: 6526: 6522: 6519: 6518: 6517: 6514: 6510: 6507: 6505: 6502: 6501: 6500: 6497: 6496: 6494: 6492: 6488: 6482: 6481:USB On-The-Go 6479: 6477: 6474: 6472: 6469: 6467: 6464: 6462: 6459: 6457: 6454: 6452: 6449: 6448: 6446: 6442: 6433: 6429: 6426: 6422: 6419: 6415: 6414: 6412: 6408: 6405: 6401: 6400: 6397: 6393: 6386: 6381: 6379: 6374: 6372: 6367: 6366: 6363: 6352: 6348: 6344: 6338: 6323: 6319: 6313: 6298: 6294: 6288: 6274: 6270: 6263: 6249: 6245: 6238: 6236: 6221:on 2022-04-22 6220: 6216: 6212: 6206: 6191: 6187: 6181: 6166: 6162: 6158: 6152: 6138:on 2009-10-23 6137: 6133: 6127: 6113:on 2010-03-27 6112: 6108: 6102: 6088:on 2010-12-14 6087: 6083: 6077: 6063:on 2012-09-09 6062: 6058: 6052: 6038:on 2010-06-26 6037: 6033: 6027: 6013:on 2009-03-29 6012: 6008: 6004: 5998: 5990: 5986: 5980: 5966:on 2009-06-29 5965: 5961: 5955: 5940: 5936: 5930: 5915: 5911: 5904: 5893: 5889: 5882: 5875: 5860: 5856: 5852: 5845: 5831: 5827: 5821: 5807: 5803: 5797: 5782: 5778: 5774: 5768: 5753: 5749: 5745: 5739: 5724: 5720: 5714: 5696: 5689: 5683: 5668: 5664: 5660: 5654: 5640: 5636: 5630: 5616: 5615: 5608: 5601:. 2022-10-26. 5600: 5594: 5580: 5576: 5570: 5556: 5552: 5546: 5532: 5531: 5524: 5510: 5506: 5500: 5485: 5479: 5472: 5467: 5460: 5455: 5440: 5434: 5419: 5415: 5411: 5404: 5393: 5389: 5382: 5376: 5363:on 2016-04-12 5362: 5358: 5354: 5348: 5330: 5323: 5317: 5309: 5308:AnandTech.com 5305: 5299: 5284: 5280: 5274: 5266: 5260: 5245: 5241: 5240:The Economist 5237: 5231: 5213: 5206: 5200: 5192: 5185: 5171: 5167: 5161: 5159: 5157: 5142: 5138: 5134: 5128: 5126: 5111: 5107: 5103: 5097: 5095: 5080:on 2013-01-23 5076: 5069: 5063: 5061: 5059: 5050: 5046: 5040: 5032: 5028: 5024: 5018: 5016: 5000: 4993: 4987: 4973:on 2014-03-29 4972: 4968: 4962: 4947: 4943: 4937: 4935: 4933: 4931: 4915: 4911: 4907: 4901: 4887:on 2011-02-15 4886: 4882: 4878: 4872: 4858:on 2010-06-28 4857: 4853: 4849: 4843: 4828: 4824: 4817: 4811: 4796: 4792: 4785: 4779: 4761: 4757: 4750: 4744: 4729: 4725: 4721: 4715: 4697: 4693: 4686: 4680: 4678: 4676: 4657: 4653: 4646: 4640: 4625: 4621: 4617: 4611: 4593: 4589: 4582: 4576: 4561: 4557: 4550: 4536:on 2014-01-15 4535: 4531: 4527: 4521: 4519: 4503: 4499: 4498:Techwalla.com 4495: 4489: 4475:on 2014-10-11 4471: 4467: 4460: 4454: 4440:on 2011-12-11 4439: 4435: 4429: 4414: 4410: 4406: 4399: 4385:on 2013-11-13 4384: 4380: 4376: 4370: 4362: 4355: 4349: 4334: 4330: 4329: 4322: 4320: 4318: 4310: 4305: 4290: 4286: 4285: 4280: 4273: 4259:on 2014-12-29 4258: 4254: 4248: 4234:on 2015-03-07 4233: 4229: 4225: 4218: 4203: 4199: 4195: 4188: 4173: 4169: 4162: 4160: 4151: 4147: 4143: 4137: 4129: 4125: 4121: 4115: 4107: 4103: 4102: 4095: 4087: 4083: 4082: 4075: 4060: 4056: 4052: 4046: 4031: 4027: 4023: 4017: 4003:on 2008-10-15 4002: 3998: 3994: 3988: 3981: 3970:on 2012-02-07 3966: 3962: 3956: 3954: 3938: 3934: 3930: 3924: 3906: 3899: 3893: 3876: 3869: 3868: 3861: 3859: 3843: 3839: 3833: 3819:on 2009-03-06 3815: 3808: 3802: 3800: 3791: 3787: 3781: 3766: 3762: 3758: 3751: 3737:on 2014-05-19 3733: 3729: 3725: 3719: 3701: 3694: 3688: 3686: 3684: 3675: 3671: 3670:UsbPinout.net 3667: 3661: 3646: 3642: 3638: 3631: 3620: 3613: 3607: 3605: 3603: 3601: 3599: 3583: 3579: 3575: 3569: 3555:on 2015-04-12 3551: 3544: 3538: 3536: 3527: 3523: 3522: 3515: 3513: 3504: 3498: 3496: 3494: 3492: 3490: 3488: 3486: 3481: 3471: 3468: 3466: 3463: 3462: 3456: 3454: 3450: 3446: 3445:point of sale 3440: 3430: 3428: 3425: 3421: 3416: 3414: 3410: 3404: 3402: 3398: 3393: 3391: 3387: 3383: 3379: 3366: 3363: 3359: 3356: 3352: 3348: 3344: 3340: 3336: 3332: 3329: 3326: 3324: 3321: 3318: 3315: 3312: 3310:fast charging 3309: 3306: 3303: 3300: 3299: 3298: 3295: 3292: 3282: 3280: 3277:In 2022, the 3275: 3273: 3269: 3265: 3261: 3251: 3249: 3245: 3241: 3236: 3234: 3230: 3229:Sony Ericsson 3226: 3222: 3218: 3214: 3204: 3202: 3198: 3197:mobile phones 3187: 3177: 3175: 3174:Always On USB 3171: 3167: 3166:Power-off USB 3163: 3159: 3155: 3151: 3147: 3142: 3134: 3125: 3117: 3115: 3111: 3107: 3102: 3099: 3097: 3091: 3084: 3080: 3072: 3068: 3058: 3054: 3050: 3044: 3038: 3034: 3028: 3026: 3020: 3017: 3013: 3009: 3005: 2996: 2982: 2977: 2968: 2966: 2964: 2954: 2952: 2942: 2937: 2933: 2929: 2925: 2923:≤ 240 W 2922: 2921: 2917: 2915:≤ 180 W 2914: 2913: 2910:≤ 5.0 A 2906: 2901:≤ 140 W 2900: 2899: 2896:≤ 5.0 A 2895: 2892: 2889: 2887:≤ 100 W 2886: 2885: 2881: 2878: 2877: 2873: 2870: 2869: 2865: 2862: 2861: 2858:≤ 3.0 A 2854: 2848: 2847: 2843: 2840: 2836:Minimum USB‑C 2835: 2832: 2831: 2827: 2809: 2805: 2801: 2797: 2794: 2791: 2790: 2786: 2783: 2782: 2775: 2774: 2770: 2767: 2766: 2753: 2752: 2745: 2744: 2740: 2737: 2734: 2731: 2730: 2721: 2716: 2707: 2703: 2701: 2697: 2696:USB On-The-Go 2687: 2684: 2680: 2675: 2671: 2667: 2665: 2660: 2657: 2655: 2651: 2647: 2646:charging port 2643: 2639: 2630: 2626: 2622: 2620: 2616: 2599: 2597: 2595: 2585: 2583: 2581: 2579: 2569: 2560: 2551: 2547: 2543: 2539: 2536: 2533: 2530: 2529: 2525: 2522: 2519: 2516: 2515: 2511: 2508: 2505: 2502: 2501: 2497: 2494: 2491: 2488: 2487: 2483: 2480: 2477: 2474: 2473: 2469: 2466: 2463: 2460: 2459: 2455: 2452: 2449: 2446: 2445: 2441: 2438: 2435: 2432: 2431: 2427: 2424: 2421: 2418: 2417: 2413: 2410: 2407: 2404: 2403: 2399: 2396: 2393: 2390: 2389: 2385: 2382: 2379: 2376: 2375: 2371: 2368: 2365: 2362: 2361: 2357: 2354: 2351: 2348: 2347: 2344:Power (max.) 2343: 2340: 2337: 2334: 2333: 2319: 2314: 2302: 2293: 2289: 2286: 2282: 2280: 2274: 2267: 2265: 2260: 2256: 2255:voltage droop 2252: 2248: 2239: 2230: 2222: 2212: 2210: 2205: 2188:5.2 ns/m 2183: 2179: 2177: 2173: 2169: 2165: 2161: 2153: 2149: 2145: 2140: 2131: 2129: 2114: 2112: 2106: 2102: 2096: 2093: 2087: 2084: 2080: 2076: 2070: 2069: 2063: 2060: 2057: 2054: 2051: 2048: 2045: 2042: 2037: 2032: 2031: 2027: 2022: 2019: 2016: 2013: 2010: 2007: 2004: 2001: 1995: 1994: 1990: 1987: 1982: 1977: 1974: 1971: 1966: 1963: 1960: 1954: 1953: 1949: 1946: 1941: 1936: 1933: 1928: 1925: 1922: 1919: 1913: 1912: 1908: 1905: 1902: 1899: 1896: 1891: 1888: 1885: 1882: 1876: 1875: 1871: 1868: 1865: 1860: 1855: 1852: 1849: 1844: 1841: 1835: 1834: 1830: 1827: 1822: 1819: 1816: 1813: 1810: 1805: 1802: 1796: 1795: 1791: 1788: 1785: 1782: 1779: 1774: 1769: 1764: 1761: 1755: 1754: 1748: 1743: 1740: 1734: 1731: 1725: 1722: 1716: 1713: 1707: 1704: 1698: 1695: 1689: 1686: 1680: 1677: 1676: 1662: 1661: 1655: 1651: 1648: 1645: 1642: 1639: 1636: 1633: 1630: 1627: 1624: 1619: 1614: 1613: 1609: 1606: 1601: 1598: 1595: 1592: 1589: 1586: 1583: 1580: 1577: 1571: 1570: 1566: 1563: 1560: 1557: 1554: 1551: 1548: 1545: 1542: 1539: 1536: 1530: 1529: 1525: 1522: 1519: 1516: 1513: 1510: 1507: 1504: 1501: 1498: 1495: 1489: 1488: 1484: 1481: 1478: 1475: 1472: 1469: 1466: 1463: 1460: 1457: 1454: 1448: 1447: 1443: 1440: 1437: 1434: 1431: 1428: 1425: 1422: 1419: 1416: 1413: 1407: 1406: 1402: 1399: 1396: 1393: 1390: 1387: 1384: 1381: 1378: 1375: 1372: 1366: 1365: 1361: 1358: 1355: 1352: 1349: 1346: 1343: 1338: 1335: 1332: 1329: 1323: 1322: 1318: 1315: 1312: 1309: 1306: 1303: 1300: 1297: 1294: 1291: 1288: 1282: 1281: 1277: 1274: 1271: 1268: 1265: 1262: 1259: 1256: 1253: 1248: 1245: 1239: 1238: 1234: 1231: 1228: 1225: 1222: 1219: 1216: 1213: 1208: 1205: 1202: 1196: 1195: 1189: 1184: 1181: 1175: 1172: 1166: 1163: 1157: 1154: 1148: 1145: 1139: 1136: 1130: 1127: 1121: 1118: 1112: 1109: 1103: 1095: 1094: 1088: 1080: 1074: 1068: 1065: 1062: 1058: 1053: 1051: 1041: 1039: 1029: 1022: 1017: 1012: 1002: 999: 995: 993: 987: 984: 982: 978: 977:USB On-The-Go 973: 972:USB On-The-Go 959: 955: 953: 948: 944: 941: 937: 932: 927: 918: 911: 905: 903: 899: 895: 891: 887: 883: 879: 875: 870: 868: 863: 861: 854:OMTP standard 851: 849: 845: 839: 837: 833: 828: 825: 809: 795: 781: 779: 775: 771: 767: 763: 754: 745: 743: 742:overmold boot 734: 733:upstream port 730: 727: 723: 722: 717: 708: 699: 690: 687: 684: 681: 678: 674: 671: 668: 663: 659: 655: 652: 649: 646: 643: 640: 636: 633: 630: 627: 623: 620: 617: 614: 610: 607: 604: 600: 597: 593: 590: 587: 582: 578: 575: 571: 561: 553: 536: 534: 529: 521: 518: 515: 512: 511: 505: 502: 501: 499: 496: 490: 487: 486: 482: 479: 476: 473: 472: 468: 465: 462: 459: 458: 454: 451: 445: 442: 441: 437: 434: 431: 428: 427: 416: 413: 410: 408: 405: 402: 401: 397: 391: 388: 387: 383: 380: 377: 374: 371: 370: 366: 363: 360: 354: 351: 350: 346: 340: 337: 336: 324: 321: 318: 315: 312: 309: 306: 303: 300: 293: 292: 290: 286: 279: 275: 271: 269: 265: 261: 257: 252: 250: 240: 230: 224:Compatibility 221: 218: 215: 213: 207: 205: 204:hot-swappable 195: 192: 187: 185: 181: 180:USB On-The-Go 176: 172: 170: 166: 162: 158: 148: 139: 137: 133: 129: 125: 120: 118: 114: 106: 101: 92: 90: 89:mobile phones 86: 82: 78: 74: 70: 65: 54: 51: 48: 45: 42: 39: 38: 34: 30: 19: 6499:Mass storage 6410: 6351:the original 6346: 6337: 6326:. Retrieved 6312: 6301:. Retrieved 6287: 6276:. Retrieved 6272: 6262: 6251:. Retrieved 6247: 6223:. Retrieved 6219:the original 6214: 6205: 6194:. Retrieved 6180: 6169:. Retrieved 6160: 6151: 6140:. Retrieved 6136:the original 6126: 6115:. Retrieved 6111:the original 6101: 6090:. Retrieved 6086:the original 6076: 6065:. Retrieved 6061:the original 6051: 6040:. Retrieved 6036:the original 6026: 6015:. Retrieved 6011:the original 5997: 5989:the original 5979: 5968:. Retrieved 5964:the original 5954: 5943:. Retrieved 5941:. 2007-09-20 5938: 5929: 5918:. Retrieved 5903: 5892:the original 5887: 5874: 5863:. Retrieved 5854: 5844: 5833:. Retrieved 5829: 5820: 5809:. Retrieved 5805: 5796: 5785:. Retrieved 5776: 5767: 5756:. Retrieved 5747: 5738: 5727:. Retrieved 5725:. 2019-09-15 5722: 5713: 5702:. Retrieved 5682: 5671:. Retrieved 5662: 5653: 5642:. Retrieved 5638: 5629: 5619:, retrieved 5617:, 2023-01-02 5613: 5607: 5593: 5582:. Retrieved 5578: 5569: 5558:. Retrieved 5554: 5545: 5535:, retrieved 5529: 5523: 5512:. Retrieved 5508: 5499: 5488:. Retrieved 5486:. 2021-10-30 5478: 5466: 5454: 5443:. Retrieved 5433: 5422:. Retrieved 5413: 5403: 5392:the original 5387: 5375: 5365:, retrieved 5361:the original 5356: 5347: 5336:. Retrieved 5316: 5307: 5298: 5287:. Retrieved 5273: 5259: 5248:. Retrieved 5239: 5230: 5219:. Retrieved 5199: 5184: 5174:, retrieved 5169: 5145:, retrieved 5136: 5114:, retrieved 5105: 5082:. Retrieved 5075:the original 5039: 5031:the original 5026: 5003:. Retrieved 4986: 4975:. Retrieved 4971:the original 4961: 4950:. Retrieved 4918:. Retrieved 4909: 4900: 4889:. Retrieved 4885:the original 4880: 4871: 4860:. Retrieved 4856:the original 4852:xbitlabs.com 4851: 4842: 4831:. Retrieved 4822: 4810: 4799:. Retrieved 4790: 4778: 4767:. Retrieved 4755: 4743: 4732:. Retrieved 4723: 4714: 4703:. Retrieved 4691: 4663:. Retrieved 4651: 4639: 4628:. Retrieved 4619: 4610: 4599:. Retrieved 4587: 4575: 4564:. Retrieved 4549: 4538:. Retrieved 4534:the original 4529: 4506:. Retrieved 4497: 4488: 4477:. Retrieved 4470:the original 4465: 4453: 4442:. Retrieved 4438:the original 4428: 4417:. Retrieved 4409:macworld.com 4408: 4398: 4387:. Retrieved 4383:the original 4378: 4369: 4360: 4348: 4337:. Retrieved 4332: 4327: 4308: 4304: 4293:. Retrieved 4282: 4272: 4261:. Retrieved 4257:the original 4247: 4236:. Retrieved 4232:the original 4227: 4217: 4206:. Retrieved 4197: 4187: 4176:. Retrieved 4145: 4136: 4123: 4114: 4100: 4094: 4080: 4074: 4063:. Retrieved 4054: 4045: 4034:. Retrieved 4025: 4016: 4005:. Retrieved 4001:the original 3987: 3978: 3972:. Retrieved 3965:the original 3941:. Retrieved 3932: 3923: 3912:. Retrieved 3892: 3882:, retrieved 3866: 3846:. Retrieved 3832: 3821:. Retrieved 3814:the original 3780: 3769:. Retrieved 3761:EDN Magazine 3760: 3750: 3739:. Retrieved 3732:the original 3727: 3718: 3707:. Retrieved 3674:the original 3669: 3666:"USB Pinout" 3660: 3649:. 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