This is a bracket for mounting a 1U device like a router or switch to a wall.

The first version was more of a flattened Z instead of an H with a leg missing. This worked well, but it was impossible to get a finger in between the wall and the tab on an RJ-45. This version stands the device out from the wall by about 5mm, which seems to be sufficient.

The mounting hole is sized for a #8 sheet metal screw.