Introducing the FlexCage MB973SP-1B, a 3-in-2 Tray-less SATA Backplane Cage, designed to maximize space use by allowing up to 3 x 3.5" SATA III hard drives, while only consuming two 5.25" device bays. It is also commercially built product in the FlexCage series for use in server environments, such as towers or rackmounts. Our renowned tray-less technology is integrated into the cage -- no screws or tools are required to insert or eject the drives. The included 80mm cooling fan also can be also easily replaced and maintained, compatible with most aftermarket 2 or 3 pin cooling fans of the same size. The FlexCage uses our new Flex Fit Design, which accommodates to different tab lengths when installing to a server or tower computer case. To ensure a peace of mind, the FlexCage is backed with our 3 year warranty, equivalent to a hard drives warranty.