Summary

This is a remix of the ASRock B560 PRO4 rear I/O backplate, modified to fit the ASRock B560M-C motherboard. The port layout on these two boards is similar, but not identical, so the original model needed adjustments. I resized and repositioned the cutouts so the LAN, USB ports, audio jacks, HDMI, and DisplayPort line up correctly for the B560M-C. The frame thickness and overall dimensions were also corrected so it snaps cleanly into a standard ATX case.

All credit really goes to Andrewants, thanks!