To do the upgrade you need the following parts:
1x Frontplate (printed)
1x Powerswitch Extension cable
You can find the upgrade instructions here: installation guide
If you want a backplate, have a look here: backplates
There are two different designs, one with the USB port and on the front of the printer, and one on the side next to the display. The side of the cable which you plug in the printer has a 90 degrees angle so it doesn't get in the way of anything.
The parts are to extend the USB port and Powerswitch on the back of the printer to the front.
Der Autor hat dieses Modell als seine eigene Kreation gekennzeichnet.