not all devices are created equal, and this can be seen with the tougharmor m998sp-b which skews the realm of possibilities. it boasts the ability to house an unprecedented 8 x 2.5 sata drives with 7mm height into a single 5.25 drive bay, making it the ultimate solution for storage dense applications. our unique hot-swappable 2.5 ez slide nano trays let you painlessly and quickly swap out drives. dual 40mm fans keep your drives nice and cool while ventilated openings located on the front and sides maximize airflow. the mb998sp-b features a heavy duty full metal housing which is commercially designed for medical and military systems, ipc, enterprise, and industrial settings. countless options in a single bay utilizing the standard 5.25 bay form factor, the compact design allows the cage to be used in various applications such as advanced raid. with the mb998sp-b it s possible to build dual raid 5 or raid 10 arrays or use 4 drives in a high performance raid 0 array plus two raid 1 arrays for backups. the mb998sp-b is extremely useful for workstations, compact servers, gaming rigs, home servers or htpc s due to its high capacity and space saving design. it is also perfect for users that need non-raid jbod storage to save different content in different drive locations. it supports a wide-range of applications which makes the mb998sp-b invaluable. using the ez slide nano trays makes drive interchangeability and maintenance completely hassle free. for drive security, the eagle-hook lock system on the tray makes sure your hard drives will not eject when not needed. the trays are designed to accommodate 7mm height hard drive and ssd, creating a 2.5" hot swap bay for any standard sata hard drives and ssds. model number : mb998sp-b color : matt black host interface : 8 x 7pin sata drive fit : 8 x 2.5" sata i / ii / iii ssd or hdd (7mm drive height)