Think of it as a little extra water down the pipe.
High speed hdmi cable 4k hdr.
Cables wear out so the older a cable is the more likely it is to have developed a.
But the good news is that premium high speed cables support 4k videos at 60hz and some can even support 8k content.
If the cable is a true high speed hdmi cable it can handle hdr.
If an hdmi cable is truly a high speed cable it will perform all of the needed duties like transmitting 4k 60hz high dynamic range hdr and 4 4 4 deep color video plus uncompressed audio.
A cable can be considered a high speed hdmi cable if it passes 1080p but not be well enough made to handle 4k.
The only way to verify it works as high speed hdmi is to test it.
More hdmi info.
Monoprice ultra slim series active high speed hdmi cable 4k 60hz hdr 18gbps 36awg ycbcr 4 4 4 6ft black.
There s nothing special about the new technology it s just additional data.