This is a mounting bracket that I designed for holding a TP Link travel router.
These units are very versatile and can be configured for many things, one of which is a WiFi booster (repeater), and this was the driver behind this bracket.
I've used other WiFi boosters, the plug-in types, but feel they suffer from EMF interference from the mains power cabling themselves, and the ones with the aerials just look weird !
Hence I currently use one of these, and it is flawless in operation, the only downside being there is no way to fix it to anything (other than with double-sided tape or glue), as they were originally intended to be used whilst traveling - hence their small size.
This design blanks off the reset button and RJ45 connection, just leaving a gap for the power lead, and the unit fits 100% flush. The fit is very tight as I designed it with no tolerance for clearance, hence if you need to remove the unit from the bracket you will need to prise it out using the 3x corners that have a small gap (the units' design has 3x corners with the same radius and the 4th corner is different, hence designing all corners based on the 4th-corner radius allows this small gap). Alternatively you could remix this to make a hole in the 'back' and the unit could be pushed-through that way - I'll probably do this if I need to make any more in the future.
The two screw holes are on a plate at the bottom to allow the whole things to be removed without taking the unit out of the bracket, so if you decide to remix this to remove the flange and hide the screws by countersinking them in the back, just be warned how tightly fitting the unit is and that it may be difficult to remove in a hurry !