Extend your USB 3.0 tethered connections beyond the normal maximum of 16 feet. The normal maximum length of USB 3.0 cables is 5 meters, or about 16 feet. Beyond this the strength and timing of the signals can get out of tolerance and the USB connection will fail. This extension/repeater cable contains active electronics, which recondition and boost the timing signals to ensure that they stay within tolerance. The repeater gets its power from the USB 5VDC bus, so no external power adapter is required. Multiple repeater cables can be daisy-chained together to get even longer USB cable runs. Backwards compatible with USB 2.0.