Windows Server 2008 R2, Standa rd Edition, Includes 5 CALSRAID 1, RAID5 for PERC6i, PERC H700 ControllersSAS, PERC 6/iR Cable, T410250GB 7.2K RPM SATA 3.5\" Hot Plug Hard Drive160GB 7.2K RPM SATA 3.5\" Hot P lug Hard Drive-EntryPERC6i SAS RAID Controller Internal with BatteryHD Multi-SelectDell Management ConsolePower Supply, Redundant, 580WT410 Heat Sync 1PE5530 Xeon Processor, 2.4GHz 8 M Cache, Turbo, HT, 1066MHz Ma x Mem8GB Memory (2x2GB), 1066MHz Dual Ranked UDIMMs for 1 Processor, Adv ECC16X DVD-ROM,SATA, INTERNALBaseboard Management ControllerOptical Cable T410No Second ProcessorPowerEdge T410 Chassis w/ up t o 6 Hot-Plug Hard Drives,LCD Diagnostics