This doesn't need supports, it leaves lots of room for airflow throughout the bottom, and provides 6 mounting holes for flexible options. Pick any two. The base is oversized enough that this isn't a tight fit, and the cables can exit without going through cutouts.
I printed using PLA, 0.8mm nozzle, 0.4mm layers, zero infill, and 2.4mm walls.
Built with onShape.
The author marked this model as their own original creation.