Semlos PCI Express PCI-E 5.1ch 6 Channels Digital CMI8738 Audio Sound Card SFF Home Theater Surround Easily converts the PC into a cinematic entertainment system by providing a compelling 5.1 surround sound. Support high performance 6-channel surround sound output, support 24-bit SPDIF OUT and SPDIF IN (optional). Own interface front-channel output, in the home/bass channel output, Rear channel output, surround sound output, microphone input, line transmission. 3D effect: Microsoft DirectSound 3D; Aureal A3D; HRTF 3D extension positional audio; EAX. NOTE:NOT compatible with Windows 10. Uninstall the old driver before installing the new driver.