INTEL CPU, 2U (Rackmount), 4 x 16G FC Host Channel and 4 x 1GbE iSCSI Channels, 24 x 2.5" SAS Disk Tray (Bay), 2 x Controller w/ Cache (8GB Default, Upgradeable w/ 8GB), 2 x Cooling Fan (Redundant), 2 x 530W PSU (Redundant), 2 x SAS Expansion Channel, 2 x Cache Backup Module, Options-(Advanced Data Service license, Mux Board, Hard Disks, Spare FRUs, & Other Accessories)