A holder for the 65W Lenovo Power Adapter

I needed a holder to mount my power adapter (65W) of my Lenovo IdeaPad to under my desk. The holder allows for the power adapter to be removed and taken away if needed. The holder itself can be glued with double-sided adhesive tape to a vertical surface. 

The power adapter has 108x47x29mm and is the standard one delivered with Lenovo IdeaPad laptops (see make pics).

To be printed without supports, in a “standing” position, that is with the square hole down. I used PETG, but any material would do.