Keystone port(s) you can attach to one of the edge profiles.
Bring the USB/Ethernet/WebCam/Whatever connectors to the outside of the enclosure.
Needs 1 m3 8+mm screw and the keystones of your choice.
NOTE: I've marked this a beta version because it hasn't been tuned for generic printing, it may need some extra space around the keystones if your printer fills in space more than mine.
The author marked this model as their own original creation.