This allows mounting two 2.5" SSD's into a 3.5" bracket or cage, uses the two widest spaced holes of a 3.5" bracket to mount it with screws. I made this to fit in a case a while back that had a U-Shaped bracket on the floor of the case to mount a single 3.5" HDD, this allows two SSD's or 2.5" HDD's to be mounted in its place. Should work for a lot of cases and applications. Print it standing up as shown, i was able to print this with 75% infill and no support in this orientation.75% infill no support, printed standing up as shown.