1. Support AES/EBU, IEC60958, S/PDIF

2. Real support for hardware 7.1 channel. Can be connected to 7.1 speakers

3. Up to 48KHz sampling rate, support 32KHz/44KHz/48KHz digital recording function

4. Support Win98/ME/2000/XP/VISTA/MAC OS9.1 (only 2 channels can be used in MAC)

5. Playback and recording of full-duplex audio streams without the need for a PC built-in sound card

6. USB2.0 is backward compatible with USB 1.1;

7. Compatible with audio equipment specification V1.0;

8. Supports USB full-speed transmission specifications up to 12Mbps;

9. 4 input terminals (one of which is optical input and two MIC inputs)

10. 5 output terminals and 1 optical fiber output terminal;