On January 16, 2020 at 01:24, PSS said...
Have you confirmed it works with 4K@60Hz 4:4:4, HDR with a UHD player or other device. Basically, put it through the ringer/ testing?
This is actually an unsupportable spec under HDMI 2.0 (it requires 23 Gbps).
The HDMI 2.0 spec is form 4:2:0 (although 4:2:2 will work).
And yes, "some" displays will accept it (over short cables), but they do not correctly resolve it. Always set your source to Native for content (4:2:0) for BD/HDR players.