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2. USB hub - Wikipedia

   en.wikipedia.org/wiki/USB_hub

   Power equals voltage times current. A USB port that draws 500 mA (0.5 A) at 5 volts is drawing 2.5 watts of power. In Bus-powered USB hubs, each USB port can supply power as well as transfer data. A self-powered hub takes its power from an external power supply unit and can therefore provide full power (up to 500 mA) to every port. Self-powered ...

3. PoweredUSB - Wikipedia

   en.wikipedia.org/wiki/PoweredUSB

   12 V and 24 V powered USB sockets, on an NCR cash register. PoweredUSB, also known as Retail USB, USB PlusPower, USB +Power, and USB Power Plus, [1] is an addition to the Universal Serial Bus standard that allows for higher-power devices to obtain power through their USB host instead of requiring an independent power supply or external AC adapter.

4. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   To allow for voltage drops, the voltage at the host port, hub port, and device are specified to be at least 4.75 V, 4.4 V, and 4.35 V respectively by USB 2.0 for low-power devices, [a] but must be at least 4.75 V at all locations for high-power [b] devices (however, high-power devices are required to operate as a low-powered device so that they ...

5. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   The USB-IF used WiGig Serial Extension v1.2 specification as its initial foundation for the MA-USB specification and is compliant with SuperSpeed USB (3.0 and 3.1) and Hi-Speed USB (USB 2.0). Devices that use MA-USB will be branded as "Powered by MA-USB", provided the product qualifies its certification program.

6. Microsoft Display Dock - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Display_Dock

   The Microsoft Lumia smartphone connects through the USB-C port on the front and on the back there are 3 USB Type-A ports, an HDMI-port, a full-sized DisplayPort connector, and a single USB Type-C port for power. [6] Although there are two video output ports, only one of them can be used at a time. The rear side of the device.

7. PlayStation 3 accessories - Wikipedia

   en.wikipedia.org/wiki/PlayStation_3_accessories

   The USB 2.0 Cable Pack contains two USB cables (Type A – Mini-B) allowing controllers and other USB-powered devices to be recharged while playing a game by plugging them into the console or powered USB hub (hub must be connected to a host device, such as a console, to charge Sixaxis or DualShock 3 controllers). The included cables feature 24 ...