Amazon.com: Tendak 1X2 4K HDMI Splitter with Audio Extractor + Optical and R/L Output Powered 1 in 2 Out Signal Distributor Support 3D for PS4 Xbox One DVD Blu-ray Player HD TV
Gefen HDMI to HDMI Audio De-Embedder GTV-HDMI-2-HDMIAUD B&H
Product - avedio links
True 4K HDMI Repeater with Audio Embedder and De-Embedder - VC882, ATEN Video Converters | ATEN Corporate Headquarters