Mac/PC plug-n-play, no special software is needed (need driver for windows 7, please download it in support page), RCA and dual headphones outputs;
USB and optical coaxial S/PDIF inputs can choose the input mode. With the volume control knob that can adjust the headphones as well as the RCA output. Note: Dolby signal input is not supported;
Hi-Fi headphone amp chips TPA6120, NE5532; with headphones protect circuit for any 16-250Ohm headphones;
Stream bit-perfect 24bit/192Hkz HD with low jitter, built-in Cirrus CM6642 + NE5532 + ESS9018K2M DAC chips, as desktop DAC, stereo headphone amp, and preamp.
Why do I need this opposed to 3.5mm out from my laptop?