External Sound Card 6 Channel 5.1 Optical SPDIF USB 2.0 Audio Adapter for Win 10

Inputs: SPDIF in, Line in, Mic in. Outputs: SPDIF out, Front out, Rear out, Cen/Bass out. Only R L channel PCM audio in 5.1 channel can be conveyed in digital playback. Note: You can not use the Microphone reverb function when using the Stereo Mix.