Your ASUS motherboard has the port. The case doesn't have the matching cutout, or the bracket that should've been in the box is missing. You're stuck with a dangling connector and no way to mount it properly on the rear panel. This is the ASUS printer port bracket — one part, one job: gives your board's printer port a secure, aligned mounting point on the chassis. Slot it in, screw it down, done
| brand | ASUS |
| type | Port bracket |
| port | Printer |