Norco 2U Rack Mount 8 x Hot-Swappable SATA (I or II)/SAS Drive Bays Server Chassis RPC-2008 2U rack mount design 8x hot-swappable SATA (I or II) /SAS drive bays Eight sata data connectors support up to eight 3.5" or 2.5" SATA or SAS hard disk drives Hot-swappable HDD tray with special designed power-off and lock mechanism 1 x slim CD-ROM bay,1 x FDD bay, 8 x 3.5" hot-swappable drive bays Four ball-bearing cooling fans for better ventilation Support EEB (12"x13"), CEB(12"x10.5"), ATX (12"x9.6"), Micro ATX (9.6" x 9.6") motherboard Redundant 4pin Molex PSU connectors