Why not label the ports and cables with:
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:
So do like they did for video and put 2A @ 5V on the label. Now you have power.
Edit: clarity
Sorry. I must have missed that. I am working on 3 hours of sleep rn due to a flight I need to catch.