This Raspberry Pi 3 Case was specially designed to work with octoprint in a printer box. The case hides nearly all cables in the case to create a clean look in the printer box. Screwholes for wall mount are also integrated to make it possible to mount the case directly to the wall of your printer box.
The length of the box is a result of hiding the USB connector of the webcam inside the case.
The case itself is mounted with M3 screws, M3 nuts, and 4 edge nuts, but it's also sufficient enough to directly screw into the plastic.
The author hasn't provided the model origin yet.