I never liked having it flop around on the usb-c cable. I haven't made a lid because I don't really need one.
Printed in PolyMaker PolyTerra Red PLA. Low infill. You need 4 M2x6 (ideally) or like me use 4 M2x8 with two washer on each hole. They just thread into the plastic.
I am not affiliated with VoltLink in any way. But buy it, it is awesome: https://www.tindie.com/products/voltlog/voltlink-cp2102n-usb-serial-adapter-programmer/
The author marked this model as their own original creation.