USB 2.0 full speed compatible Fiber 2.USB audio equipment specifications. 1.0 and USB HID specification. 3.IEC60958 Standard (S / PDIF input and output with loop-back support) 4.Dolby digital audio streaming via S / PDIF output, 6-channel DAC output, 16-bit resolution, headphone buffer 5.2 times the number of broadcast data interpolation, more powerful amplifier is a common sound card can not match. Breaking the analog 5.1-channel mode. Really feel the sound quality stereo and surround effects. 6.2-channel ADC input and stereo microphone support 33DB maximum performance 7. Recording source selection form of S / PDIF, microphone, line in front of input channels (all channels optional) with volume control and mute function, playback and mute function, support 48/44.1 KHz sampling for playback and recording rate 8. Microprocessor / EEPROM in / through the hidden GPIO control software interface software drivers 9. 3D sound speakers plus headphone shifter sound environment, family patterns Kara OK function, Dolby digital real-time Content Encoder (optional) Packing accessories: A USB 2.0 optical 5.1-channel sound card 1 x Driver CD-ROM, 1 x USB cable