FatCage 5 in 3 SATA Internal Backplane Module, 5x 3.5 SATA I / II / III (SATA 6Gbps) HDD in standard 3x 5.25 device bay, full metal body, removable modular 92mm cooling fan, removable EZ-Tray design, LED hard drive status notification, Active Power Technology (APT) - individual led & cooling fan, COOLING FAN, HDD TRAY, HOT-SWAP, SUPPORT SATA 6Gb, 4TB HDD support,MB155SP-B