Wall holder for Alfa USB adapters with high gain antenna

I needed to use some Alfa USB adapters with high gain antenna for some wifi work. To keep the adapter and antenna in place I designed this wall holder.

Screw the screws tight when this holder is placed on the wall. The adapter might be hard to get out of the holder again if the screws are sticking to much up. If I am going to make more of this, I might make the backside thicker so that I can 'embed' the screw head in the backside. It's done in the file: "Alfa USB adapter holder v0_3.fcstd"