the colors are just for aesthetics.
Blue is a convention to indicate USB 3. Of course, not everyone actually implements that, and USB-C ports don’t, as far as I know, do that at all, just USB-A.
My current desktop does both – the case has USB ports on the top that come off a USB header from the motherboard, which have a simple number “3.0” pointing at its USB-A ports in front, but uses black plastic for them. The motherboard’s USB connectors in back use the “blue plastic” convention on its USB-A ports.
Redex68@lemmy.world 2 months ago
If they’re following the standard, which they often do but sometimes don’t, white indicates 2.0 and blue indicates 3.x. I think there are more but I don’t remember the other colours.