Simple and convenient way to power on and off your printer from the front. No new holes to drill. It uses Power supply original holes to stay in place. You can use power switch from the back of your printer. You'll have to lengthen one cord from power socket (as seen on the photo).Rotate the thing before printing. Circles has to be on the plate. No support needed. There are many overhangs and bridges, but it all printed nice with no support. You will need two short M4 screws.