Summary

This plug neatly covers a hole in the wall for threading a standard ethernet patch cable. It's designed for a hole made with a 3/4" drill bit - just enough for the ethernet plug to easily slide through. The cable can be up to 6mm thick. As is, you will need some force to drive the plug into the hole (I had to use a rubber mallet); reduce the XY scale slightly during slicing if you want to do this without a mallet.

Both the original Fusion 360 file and STL files are provided.