It's designed to put the pinepower on a Skadis board.

I used this to glue it to the side of the bracket.

https://www.thingiverse.com/thing:5594243

The design is to put it sideways as the power cable is on the rear of the power supply. You can flip the design in cura or other software if you wish to have it reversed. This design is stronger.

It's not a tight fight, making it easier to take it out if you need to take it with you. It is snug enough.

Creality

Ender 3 Pro

No

No