everything up to 10 m should also be certified
https://www.oehlbach.com/de...

"4K UHD 50/60 Hz
Data rate 18 GBit/s
ARC - Audio Return Channel
32 digital audio channels
3D TV at 4 K resolution
Deep Color 30/36/48-bit
21:9 Cinema aspect ratio
HDMI CEC Automated A/V Control
HEC - HDMI with Ethernet Channel
CEC 2.0
HDR - High Dynamic Range Image
Dolby Vision