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
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Monoprice Blackbird 4K Series 7.1 HDMI Audio Extractor - Monoprice.com
Kanex Digital Audio Adapter for Apple TV
J-Tech Digital Premium Quality 1080P HDMI To HDMI + Audio (SPDIF + RCA Stereo) Audio Extractor Converter (Support Apple TV 4 Gen) (4c450b29ead968fc0958fd963df7922a) - PCPartPicker
HDMI 4K (18Gbps) Audio Extractor with HDCP 2.2, Dolby Atmos, and DTS-HD Master Audio