ezcoo 4K HDMI to HDMI Audio Extractor ARC,4K HDMI Audio Converter (SPDIF Optical+Coaxial+3.5mm L/R Stereo Audio),5.1CH Dolby Digital DTS Audio Decoder for Speaker Amplifier,AUTO EDID

Passes HDMI video ok, but no digital audio out, either optical or coax. Had to buy the more expensive Tripp Lite 4K HDMI Audio Extractor De-embedder for $44.64 which actually works - perfectly! https://www.amazon.com/gp/product/B0794RPY4R/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Two issues,1. Does not include HDMI cable (as advertised). You will also need to supply 5W USB power supply.2. This is the deal breaker - device will not pass HDCP 1.4 content. Roku 3 does not recognize the device as able to pass 1080P content and will only support 720P. Returned.

Inverted colors when used with roku ultra 4660.

Works as expected