Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4678304.

Creality Wifi Box Case 4020 Mount Creality Wifi Box Case (and lid) firm fit for 4020 profile. Couldn't find a proper one and I did it myself. Take care that the case fits 4020 profile very firmly. You may break or slide through the corners of the profile if you want to remove the case from the printer. I mounted on the left side base profile of the printer (Ender 3 pro) vertically. Works perfectly for me.