I ordered a Brennenstuhl 8 port powerswitch off Amazon. It's supposed to go under my desk, but had no way of mounting it, since the package came with only one adapter plate (white in the photo).

Printed in PETG with 3 walls and 30% infill. No brim, supports etc. needed.

After you finish printing it, heat the bottom part of the snap hook with a hairdryer, hot air gun or a soldering iron. Once the material gets slightly soft, bend the hook around 3mm up and wait for it to cool.