ICY DOCK FatCage MB155SP-B 5 Bay EZ-Tray 3.5" SATA Hard Drive Hot-Swap Backplane Cage in 3X 5.25 Bay 5 in 3 RAID backplane module. Fits five 3.5" SATA I / II / III (SATA 6Gbps) hard drives in three 5.25" device bay & fully supports SATA Hot-Swap function. Large 92mm cooling fan with full metal body for excellent heat dissipation for the most intense applications. Compact and space saving to fit multiple drives. Interchangeable EZ-Tray tray design for internal drive security, exchangeability, expandability and maintenance capabilities. Compatible with DataCage Classic MB45X, ICYBento MB559 & ICYCube MB561 series.