I recently installed a Leviton Structured Media Center (SMC) during a remodel and in an attempt to get all of my smart home tools installed, I needed a mount for the Leviton Caséta (Caseta) Smart Hub aka Smart Bridge. This mount uses Leviton's Lock Pins (Search for leviton 47615-nyl) to mount the hub into the SMC. I printed mine in PETG but the smart hub is so light that it's likely fine to print in PLA.

My goal with the grid pattern was to provide more airflow. (Note, I'm using Leviton's “Wifi” SMC vs their Steel model). The print takes about an hour and does not require supports if printed with the grid down on the build plate. In the 3mf version, I printed with 3 walls and 6 base layers in order for the “ears” to be fully filled in.