Sounds like you're looking for a 90 degree USB 3.0 male to female header adapter.
(to have a 90' angle into your motherboard & connect to your case IO USB cable?)
Unfortunately, you're not the only one:
https://linustechtips.com/main/topic/229155-do-right-angle-usb3-headers-exist/
Sounds like you're looking for a 90 degree USB 3.0 male to female header adapter.
(to have a 90' angle into your motherboard & connect to your case IO USB cable?)
Unfortunately, you're not the only one:
https://linustechtips.com/main/topic/229155-do-right-angle-usb3-headers-exist/