USB2.0 pure digital output, virtual 7.1 channel processing capability (actually 2.1 channels), the effect is the sound card integrated on the motherboard. | Meet the first-class 1.0 USB device specification. | Using the CM100B sound card chip, it can be used without a driver, it can be used to obtain for functions by installing a driver, with sound effect settings and sound field settings, and good compatibility. | Connector: USB Type A socket, 2 stereo output 2 mono microphone input | Includes xear 3D, virtual 7.1 channel sound simulation software under for