Easy. trayless removal and insertion of dual 2.5in SATA hard drives from single 3.5in bayThis 3.5in SATA hard drive hot-swap bay allows you to install two 2.5in SATA hard drives (HDD) or solid state drives (SSD) in an available/unused 3.5in floppy drive bay.Featuring a convenient "no mounting required /easy eject" feature (like a tape cartridge or floppy disk). the hard drive hot swap bay doesn't require that the drives be installed in a tray - making it the ideal solution for quick and easy drive removals and insertions as part of a system building process. or integration into rackmount systems or industrial environments.To maximize performance and utilize the full speed potential of your SATA III hard drives. this HDD Backplane supports SATA III for transfer speeds up to 6 Gbps when paired with a compatible controller.Also a perfect addition for operating system image deployment and any task that requires being able to quickly access large volumes of data on the fly. the hot swap bay