HDMI Splitter Audio Extractor, 4k@60Hz 1 in 2 out with HDMI Optical Toslink SPDIF + HDMI 7.1CH + 3.5mm Audio Out for PS4 Xbox One DVD Blu-ray Player HD TV Projector - Newegg.com
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
Sonos HDMI to Optical Adapter - Compatible with Sonos Arc, Beam & Amp