This thing contains a mounting plate and a drilling guide for the “Raspberry Pi Model B”.
The plates are not symmetrical. The notch shall be on the power jack and ethernet cable side. The base plate is 2 mm thick. M2 5 mm or 1/4″ 4-40 screws are needed to fasten the board to the mounting plate. The mounting holes are three mm in diameter.
The holes do not go through the lower layer to make it easier to print. You will have to drill them.
The author marked this model as their own original creation. Imported from Thingiverse.