This will let you place a raspberry pi or anything else that follows that form factor into a full sized desktop case. It also allows for the installation of a small fan for active cooling. (I'm looking at you, tinkerboard users.)

This was part of a project where I turned an old, dead pc corpse into the most ridiculous NAS ever.

Modify it all you want, modify, but don't sell this. If you do share this or a modified version, please cite your original source.