Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4831516.

One of my first edits, remixed in Fusion 360. Remixed such that the 'z' dimension is a higher value, and that there's additional material in the slot, for the cable to snap in securely. Supports are recommended as I was having issues, where mid-print the object would remove itself from the build plate, and I assumed that there was not enough material in the orig. to secure it.

Note: Once the cable is secured in the print, I found it quite strenuous to remove. While I am content with leaving the two pieces as is, be wary if you are using a case for your Surface Laptop.