Normal max length of USB 2.0 cables is 5 meters or about 16 feet. The repeater gets its power from the USB 5VDC bus so no external power adapter is required. Cable is compatible with the USB version of the Xbox 360 Kinect and with the PlayStation 3 eye camera. This extension/repeater cable contains active electronics, which recondition and boost the timing signals to ensure that they stay within tolerance.