This is a mount for the Mikro Tik hEX RouterBOARD for mounting it vertically with the ports facing you and the USB facing down. Mounting is done with 2 M3 countersink screws 34mm from one another.

The router should slide into place and be held down securely.

I had issues fitting the router because my printer printed slightly smaller in the z-axis. I have added a few models with different tolerances.