USB 2.0 3D 7.1 Audio 8 Channel Sound Box                                                    
USB Spec 2.0 full speed compliant
USB Audio Device class Spec.1.0 and USB HID Class spec.1.1 complaint
SCMS(Serial Copy Management System)Complaint
Dolby @ Digital Audio Streaming Via S/PIF out
USB remote wake-up support
8 Channel DAC output with 16 bit resolution Volume control and mute function
Earphone buffer 2X interpolator for digital Play back data to improve quality
2 Channel ADC input with 16 bit resolution
Additional headphone out with selectable source and phone jack sense
Stereo MIC support with boost capability
Recording source select from S/PDIF, MIC, Line-In and summation of MIC, line-in front
Channel(all channels optional)

MIC, Line-in monitor from front channel(all channels optional)with volume
Control and mute function
Master volume control by default; per-channel volume control by C-Media driver
Playback with soft-mute function
Support 48/44.1 KHZ sampling rate for both playback and recording
MCU support with two-wire serial interface
Volume up/Volume down/Playback mute HID button
LED indicator pins: operation/recording mute/SCMS protection
C-Media value added software(multi-channel positional 3D sound,AC-3 encoder, ect.)
Embedded USB transceiver and power and reset circuit
C-Media value added patent software driver Support Vista
Size:12.6*6.2*2.2cm
Weight:95g