This thing is a mount to attach a power supply to a board. The power supply is zip-tied to the mount, and the mount is screwed to the board. It gets the job done. The power supply is the one that was included in my Replikeo Prusa i3 Rework kit. It is fairly common and can be found online for less than $50.I printed it in white ABS. I then used 2 long zipties to attach the PSU to the mount. A few machine screws attach the mount to the board.