With the startech two-drive trayless hot swap sata bay, users can install two sata hard drives or solid state drives in an available single 3" bay. Much like the old floppy disk drives, this trayless bay features an easy eject function, which doesn't require the drives to be installed in a tray. As a result, users can quickly and easily remove and insert drives whenever they please. To maximize performance and better utilize the full potential of your sata iii ssd or hdd, this hdd backplane supports sata iii for transfer speeds up to 6 gbps when paired with a compatible controller. For your convenience, this backplane has a 50,000+ insertion life rating, ensuring longevity for both the hdd/ssd and the bay.