Amazon.com: ROOFULL 4K HDMI Input to HDMI and SPDIF Optical + 3.5mm Stereo Audio Output, HDMI Audio Extractor Splitter Converter, Support Apple TV, Fire TV, Blu-ray Players : Electronics
Sonos Optical Audio Adapter Optical digital audio to HDMI adapter cable at Crutchfield
HDMI vs Optical Audio - Which One Is The Best - YouTube
HDMI ARC vs. Optical – Which Is Better?
Amazon.com: Tensun 4K HDMI to HDMI Optical SPDIF TOSLINK Converter Adapter with 3.5mm RCA R/L Stereo HDMI Audio Extractor Splitter for Blue-ray PC Laptop Xbox One HDTV : Electronics
Premium 4K 2K HDMI DVI Audio Encoder + Analog/Digital Audio To HDMI Converter
Kanex Digital Audio Adapter for Apple TV
4K@60HZ HDMI Audio Extractor, HDMI 2.0b Audio Splitter Converter, HDMI to HDMI + Optical Toslink SPDIF + 3.5mm Stereo Audio with Control Output Analog Volume Knob Compatible for PS5/4/3/Blu-ray player - Newegg.com