This is a mounting bracket for the ARRIS SURFboard SBG6950AC2 16x4 DOCSIS 3.0 Cable Modem. I got mine from Amazon. I printed it with 4 shell layers, and 50% infill. You'll need some sort of drywall anchor if you're mounting it on sheetrock.
The author marked this model as their own original creation. Imported from Thingiverse.