Acoustic Revive of Japan suggests that problems of conventional USB cable for audio use is that the signal line and power supply line are installed together in parallel and radiation noise can affect sound quality.
Wireworld tried to separate the power supply line using dielectric shield in their Starlight range, but Acoustic Revive has gone a step further - separate the two completely.
USB-1.0SP and USB-1.0PL are equipped with two independent cables consisting of a two-core shielding structure with a 100% shielding effect obtained by using a copper foil.
USB-1.0SP employs two A-Plugs for the output side to achieve perfect separation of the signal line and power supply line. (Imagine a two-headed snake!) A PC is normally equipped with several USB outlets conveying the same signals, therefore, you can bring out the signal and power lines separately from the output, AR is claiming a dramatic improvement in sound quality, channel separation and S/N ratio.