Why not label the ports and cables with:

10Gb/s 2.1Amps 1080p at 60hz

It’s future proof and doesn’t need a decoder manual other than basic literacy. It can be in whatever language the fucking keyboard is. If you want to be redundant but even more clear:

Universal Serial Bus -> (this hole right here) Speed: 40Gb/s Power: 2.4Amps Audio/Video: 4K at 120Hz or 8K at 30Hz