This is a Banana Jack Power Box, but it could have many other uses. 3.5mm Headphone Jack holder or box for LED's or Switches. It can be rescaled for bigger Jacks like 1/4" Headphones, etc. Note the 2 hole sizes of the 4 holes pending type of jack used. 5.5mm x 2.1mm Jack will also fit the 8mm hole.
iPRINT 3D, HATCHBOX, Tianse, etc. PLA, PVC, PETG
The box can be mounted with #6 Flathead Wood Screw or Flathead Bolt