PoweredUSB - Computer Definition
(1) (powered USB) A USB port on a computer that can charge a portable device even when the computer is turned off, as long as it is plugged into the wall.
(2) (PoweredUSB) A high-power USB interface from IBM that provides six amps at 5, 12 and 24-volts. Used for peripherals that need more than the standard USB maximum 500 milliamps, power is transferred in separate wires within the cable. See USB.