This is a cute little cap to protect the USB end of your mouse dongles and other USB equipment. You may have to tweak the scaling ever so slightly to get it to fit snugly without being overly tight. There's a surprisingly large variance of tolerances in USB ports.

I've included the F3D and STEP files if you'd like to modify it.

Print instructions

No supports needed. 0.15mm layers or better will make it look nicer.