Needed an internal USB cable connected directly to MB. Found an old extension cable, cut it to pieces and made the plug as small as possible:
Two layers of white tape, as it's black wire:
Didn't have a good plug, so I cut one of these little ones to length and soldered it on:
The colors are usually Red, White, Green and Black, in that order, but check with your MB manual if you need to make one.
Sleeved and some heat shrink, done: