COOJ MQ4 – PSU bracket measurements needed (HDPLEX 250W GaN build)

alterego

Minimal Tinkerer
New User
Mar 30, 2026
3
3
Hi,

I’m working on a custom HDPLEX 250W GaN bracket for the COOJ MQ4.

Would any MQ4 owner be willing to help with a few measurements of the PSU bracket / PSU mounting area?

I specifically need:
- hole spacing
- width/height of the PSU mounting area
- internal clearance/depth in the PSU section
- rear AC cutout dimensions

If anyone has calipers and can help, I’d really appreciate it.

If there is enough interest, this may turn into a proper printable bracket for MQ4 + HDPLEX.