The hard drive cage holds a total of four hard drives, and makes installation or the frequent swapping of hard drives simple and trouble free, by using the same rail system as the optical and floppy drives. The hard drive cage can be removed or left in the case when installing the hard drives. Removal of the hard drive cage is done by removing a thumbscrew and pushing down on the tab and pulling the cage forward, a truly tool-less solution. Note the perforated venting areas around the hard drive cage.