ROOFULL 4K HDMI to HDMI and Audio Output (SPDIF Optical + 3.5mm AUX Stereo), Premium HDMI Extractor Splitter Converter Adapter for Apple TV, Fire TV, Blu-Ray Player – ROOFULL Official Website
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
Hdmi audio extractor HDMI to HDMI and Optical TOSLINK SPDIF + 3.5mm Stereo Audio Extractor Converter HDMI Audio Splitter Adapter - Price history & Review | AliExpress Seller - Shop417157 Store | Alitools.io
Optical vs HDMI Cable - Which Digital Audio Connection to Use?
HDMI vs. Optical: Which Digital Audio Connection to Use? - CNET
HDMI Audio Extractor 4K, Hdiwousp HDMI to HDMI Audio Optical Stereo 3.5mm Jack, HDMI Audio Converter with HDMI Cable to Toslink SPDIF AUX Output Support HDCP1.4 3D for PS4/Roku/Bul-Ray Set-Top Boxes -
Amazon.com: avedio links 4K@60Hz HDMI Audio Extractor, HDMI to HDMI + Optical Toslink SPDIF + 3.5mm AUX Stereo Audio Out, HDMI Audio Converter Adapter Splitter Support HDCP1.4 Full HD 1080P 3D :
Sonos Female-to-Male Audio Adapter Black OPADPWW1BLK - Best Buy