A simple design to add a switch to the Bento Box V2 fan system. It fits into the front wire access hole without modifying the Bento Box parts. It was designed for use with this switch: https://amzn.eu/d/2OECbjA which is a standard size. I also designed and made a holder for a 2 pin JST socket to fit in the rear wire access hole. However, there is not enough clearance to use this with the Bento Box it is designed position. You could cut a hole in the wall of the printer but decided not to do this. I have included the design for the socket holder too as some may find it useful for wire connections at the front if not using the switch.