Micro iUSB3.0 Low Noise USB Audio Power Supply with Dual USB3.0 Active Noise Cancellation inverts the USB signal and creates an astoundingly low noise floor for your USB audio system Regenerates, reclocks, and rebalances the stream to your DAC to provide a perfect square wave without jitter our packet errors Dual USB3.0 output separates the data and power to eliminate interference and provide the cleanest input possible Two sets of USB outputs allow you to connect an external hard drive or media server Powered by the included low noise iPower DC wall wart and includes Groundlink to add a ground to your audio chain