The maker file I've included is setup to print on an X1C, but in general.. I used 0.16 layer height (0.2 should be fine), 3 walls like the original, and I had to use supports. The magnets should press fit in with some force and should not come out.
Magnets: https://a.co/d/bZtlJdV
5.5x2.5mm barrel jack: https://a.co/d/ikKEjaC
Finally, I've noticed that the seams are noticeable in some places, but I'm not sure how I can get rid of them in a uniform way, so be sure to check out the different ways your slicer can position the seams and choose what works best for you. This was literally my first time ever using any 3D modeling software (I used Fusion). If someone can show me the way to properly get rid of the seams, I'd love to learn.
The author remixed this model.
Changes..