大家帮看看，从这个usb声卡的介绍分析下，他属于啥档次的

chutianx

大家帮看看，从这个声卡的介绍分析下，他属于啥档次的
"USB 2.0 to Audio                                                         
1.Two-audio output & input.Volume control,Close phone & microphone key, C-MEDIA CN108 chip. The duplex sound track stereo sound, can simulate 7.1 sound tracks         
2. Simulates 5.1 channel professional performance, the digital playback circuit frequency response: 48 KS / SEC.
3. With a soft mute function, high-performance 16-bit audio DAC and headphone amplifier telephone, 16 of the microphone input ADC         
4.Producer promise its best timbre and high-quantity"