We needed a way to lock out some data cables in our makerspace so I made this quick-and-dirty lock box. Drop the connector inside the box, slip the lid tabs into the holes on the base, close and lock it with a 5mm x 20mm padlock or zip tie. It's not designed to be secure but to ensure that there's no accidental connection.

No special settings should be needed. I printed with PLA on our Me3D.

Box is ~55mm x 50mm x 25mm. I've included a STEP file in case you want to tweak it. There's some text in the STEP that you might want to remove. No text in the STL.