Another port bites the dust: Xbox Series X drops S/PDIF audio | Ars Technica
S/PDIF - Wikipedia
Digital Optical Audio Cable 15 Feet S/PDIF Fiber Optic Cable Toslink TV Optical Cable for Soundbar, Home Theater, Speaker Wire, TV, PS4, Xbox Male to Male Gold Connectors Cord - Walmart.com
Can I connect SPDIF to optical? - Quora
Using S/PDIF leads directly from the toslink port on X-Fi Titanium | Headphone Reviews and Discussion - Head-Fi.org
Digital Audio Output (S/PDIF) - Microsoft Community
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What is the Use of SPDIF Port in Setup Box || SPDIF Port explained in very Simple Language - YouTube