FRONTX - Bulkhead RCA Video (Composite Video) / SPDIF Coaxial Cable - panel mount RCA female to header/pinout
ECS - Motherboard, Notebook, Tablet PC, System, IPC, LIVA Mini PC
Amazon.com: SPDIF RCA Out Plate Cable Bracket : Electronics
Amazon.com: StarTech.com USB Sound Card w/ SPDIF Digital Audio & Stereo Mic – External Sound Card for Laptop or PC – SPDIF Output (ICUSBAUDIO2D),Black 0.6" x 1.8" : Electronics
Hooking into my motherboard's S/PDIF header. : r/AskElectronics
Amazon.com: SPDIF Optical and RCA Out Plate Cable Bracket for ASUS Gigabyte MSI : Electronics