They plug the cable into the relevant socket and forget about it ... and one in particular is about to be upgraded in a big way. HDMI 2.2 was announced at CES in January 2025.

HDMI is a modern standard for the transmission ... variable or throttled power requirements (dimmer) from the same socket. This is because they can interfere with each other.

They plug the cable into the relevant socket and forget about it. But these cables and connections are capable of some pretty amazing things, and one in particular is about to be upgraded in a big way ...