XTIA USB-C Top Panel

This replaces the top panel PSU connector and allows you to replace it with a USB-C port. It supports this USB-C front panel adapter I found on Amazon:

Amazon.com: GRAUGEAR USB 3.2 Gen 2 USB-C Front Panel Adapter, Motherboard Header Extension Cable, USB-C Female to USB Type-E A-Key Male Cable with Low Profile Bracket and Mount Screws, 19.6 in [G-AD-ETC-10G] : Electronics

I printed top-down in PETG with no supports, the same screws from the PSU connector mount it to the XTIA case and the USB-C panel itself comes with the tiny screws to mount the port.