Digital to RCA converter 5.1 sound? : r/hometheater
USB-AUDIO5 - USB to 5.1 Channel Audio Adapter
kebidu 4K 3D SPDIF Audio Converter adapter Cable with USB cable to HDMI compatible For Xbox 360 PS3 PS4 PC Laptop TV Box|hdmi to hdmi|to hdmihdmi to - AliExpress
Hama "7.1 Surround" USB Sound Card
hama USB 5.1 CH Audio Converter - USB zvucna kartica - Kupindo.com (23349019)
Turtle Beach upgrades, iterates USB soundcard line, adds optical output for true 5.1 surround | Engadget
3ft USB C to DisplayPort 1.2 Cable 4K60 - USB-C™ Video Adapters