I liked the original design by @nrp and the remix by @Nitek (thingiverse) but I also wanted some of the features seen on other versions of the power supply case such as:
Now you can alternate between USB-C PD with a decoy module (which I don't have yet) OR use the DC input jack. Obviously do not connect both at the same time!
I closed the hole for the switch before uploading because there's an infinite number of switch sizes out there and it is a totally optional component. If you want a switch in the same spot it is easy to cut a hole post-print.
No supports needed. Sorry, I don't have a STEP file for this as I remixed it by hacking STLs.
The author remixed this model. Imported from Thingiverse.