USB Multi-Channel Sound Converter With 5.1 Channel Surround
USB Sound card Manual
USB Multi- Channel Audio Converter User Manual
Amazon.com: 7.1 USB 3.5MM Sound Card I/O 48KHz sample rate 8CH DAC and 2CH ADC via S/PDIF Input and Output with loop-back support standalone Cmedia software for WINDOWS only : Electronics
Best 2 / 4 / 6 / 8 Channel Audio Interface & up to 16 Channel | Gearank
USB Multi-Channel Sound Converter With 5.1 Channel Surround
Usb To 5.1 External Sound Card PD550 CM6206LX Driver - YouTube