If you have a case with 3.5" hard drive cages that mount drives via the bottom holes, then the 2.5"-to-3.5" adapters that come with your SSD probably don't work...Print one of the designs; the "thin" adapter is structurally sound enough for holding a SSD, but if you want the extra heft, you can use the solid adapter.Screw the adapters to the SSD (usually the obtuse angle toward the SATA ports), then screw the entire thing to the cage.(image shows a 2.5" laptop HDD)