audio hardware - What is S/PDIF Port on Xbox 360? - Arqade
Digital Audio (SPDIF) Mod - ConsoleMods Wiki
Digital Audio (SPDIF) Mod - ConsoleMods Wiki
Amazon.com: StarTech.com 10 ft. (3 m) Digital Optical Audio Cable - Toslink Digital Optical SPDIF - Ultra-Thin - Male/Male (THINTOS10), Black : Electronics