Ubiquiti Flex Mini mount. Designed to be used with 6x1 1/4th Drywall screws.

Switch should fit snug, should be able to be mounted in any orientation, PETG is recommended but PLA worked fine for my indoor use.

I placed it in this orientation to ensure the surfaces look good on the viewable sides, If you flip it upside down, it will print faster and with less filament; however, the flaps won't look as clean.