This is a Honeycomb Storage Wall Mount for a Netgate 2100. I remixed this model in Tinkercad from a design posted by nickandhiscat on Thingiverse (https://www.thingiverse.com/thing:5452122).

To make it possible to install the gateway the mount is printed in two parts and assembled using two M3 Screw and Nuts. Supports will be needed to print this.

Update: Added Side A v2 - A slight cutout was added to account for the power supply plug. (Please note: I used rough measurements for this and have not printed/tested v2 myself.)