WINGONEER PCM2704 USB DAC USB Power fiber optic coaxial analog output sz-11 Raspberry Pi Raspbian RaspBMC Support 16bit kHz/44.1 kHz/48 kHz Voltage: 5 V (USB interface) Signal to Noise Ratio: 98 dB; Dynamic range: 98 dB Distortion: THD + N: 0.006% (RL&gt; 10 k); Distortion: THD + N: 0.025% (RL = 32 ) USB support system: WINXP/Windows 7 / doing, apple's MAC OS 9 / OS X, android 4.1 above system model (need to support OTG)