MB974SP-B is the latest generation of the ICY DOCK hard drive extraction module, only three 5.25-inch disk space can be installed four 3.5-inch SATA hard drive. Screwless design and with exclusive, you plug the hard drive completely without careful and tools, even the screws! Model: MB974SP-B Color: classic black using the hard disk: 4 x 3.5-inch SAS or SATA I / II / III connection Specifications: SATA 7 pin x 4 hard disk, SATA 7 pin is connected to the front eSATA port, USB 2.0 5 pin connected to the front USB2.0 port device space: three 5.25-inch disk space transmission speed: 6Gb/sec (depending on the hard disk speed) link interface: 15 pin hard drive directly connect the front panel: eSATA port x 1 USB 2.0 ports x 1 adjustable fan (high speed / low speed / automatic) Structural Material: all aluminum plus the plasticizing panel cooling system: the rear removable cooling the aluminum fan cooling fan: 80 x 80 x 25mm rear ball bearing cooling fan power display : Blue lights hard to read: the blue light flashes Dimensions (L x W x H): 210 x 148 x 126 Weight: 1210 g 3-year Warranty hard extraction rack removable disk cartridge wholesale hard extraction disc multiple disc extraction module three years the IWS hard extraction rack removable disk cartridge wholesale hard extraction disk multi-disk extracted three Warranty hard extraction module rack removable disk cartridge wholesale hard extraction disk multi-plate extraction module