Review on AV Access 4K@60Hz HDMI 2.0 Splitter: Gaming Splitter for Xbox and PS5, Dual Screens with HDR10 & 3D, Zero Latency & HDCP 2.2 Compatibility by Paul Rose

I've been reading reviews on here and people seem to be having some issues with this unit so before installing it I dropped it on my workbench to check a few things. People are writing about the device not pushing HDR to connected displays that are capable of it; It should be noted here that the device only outputs the picture that the connected television can display with the lowest quality. So if you connect one that only has stereo sound, they all have only stereo sound. If you connect one with HDR and one without HDR, they all have no HDR. I suspect this is a design constraint to optimize the internal hardware. On the face of it, it's pretty impressive that they can get this little box to convert 4K to 1080p and back and still be responsive enough to play games, so I'm guessing they have a device that's the lowest quality needed for the show and then outputs it to both for convenience. To be honest, you'd be hard pressed to find anything similar that doesn't; In order to function as some would like, the device must decode two different HDMI streams and then re-encode them while manipulating the rest of the HDMI overhead. Overall, it's fantastic value for money, even if it's not immediately clear how it works.