HDMI Audio Extractor with TOSLINK, 3.5 mm Stereo, 6-in. | Eaton
HDMI vs. Optical: Which Digital Audio Connection to Use? - CNET
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