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2. Common external power supply - Wikipedia

   en.wikipedia.org/wiki/Common_external_power_supply

   A common EPS must include a cable with a micro USB-B (2.0) connector for connecting to a mobile phone. This cable can be either captive (permanently attached to the power supply) or detachable. If detachable, the cable must connect to the power supply via a standard USB type-A plug. [12]

3. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   Such devices can use an external power supply, 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 ...

4. Dock connector - Wikipedia

   en.wikipedia.org/wiki/Dock_Connector

   Dock connector on a 2011's HP EliteBook laptop. A dock connector is an electrical connector used to attach a mobile device simultaneously to multiple external resources. Dock connectors typically carry a variety of signals and power, through a single connector, to simplify the process of docking the device.

5. Quick Charge - Wikipedia

   en.wikipedia.org/wiki/Quick_Charge

   Quick Charge is a proprietary technology that can charge battery-powered devices, primarily mobile phones, at power levels exceeding the 7.5 watts (5 volts at 1.5 amps) supported by the USB BC 1.2 standard, using existing USB cables. The higher voltage available allows more power (watts) to be supplied through wires without excessive heating.

6. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   Micro-USB Cables and Connectors Specification 1.01; InterChip USB Supplement; On-The-Go Supplement 1.3 USB On-The-Go makes it possible for two USB devices to communicate with each other without requiring a separate USB host; Battery Charging Specification 1.1 Added support for dedicated chargers, host chargers behavior for devices with dead ...

7. USB-C - Wikipedia

   en.wikipedia.org/wiki/USB-C

   Whereas earlier USB cables had a host end A and a peripheral device end B, a USB-C cable connects either way; and for interoperation with older equipment, there are cables with a Type-C plug at one end and either a Type-A (host) or a Type-B (peripheral device) plug at the other. The designation "C" refers only to the connector's physical ...

8. Lightning (connector) - Wikipedia

   en.wikipedia.org/wiki/Lightning_(connector)

   Apple Lightning to USB-A cable. Lightning is an 8-pin digital connector. Unlike the 30-pin dock connector it replaced (and USB Type-A and -B connectors), it is reversible. [23] Most Lightning devices only support USB 2.0, which has a maximum transfer speed of 480 Mbit/s or 60 MB/s. With USB 2.0, only one lane is in use at a time.

9. iPhone 3G - Wikipedia

   en.wikipedia.org/wiki/IPhone_3G

   In addition to EDGE, the iPhone 3G supports Assisted GPS, 3G data, and tri-band UMTS/HSDPA. These enhancements allow faster data downloads and turn-by-turn navigation with maps compared to previous devices. Like its predecessor, the iPhone 3G features a proprietary 30-pin dock connector for charging the device.