Model   Dell PowerEdge R420 Processor Intel Xeon E5-2407v2 2.40GHz, 10M Cache, 6.4GT/s QPI, No Turbo, 4C, 80W Memory 4GB Memory (1x4GB), 1333MHz, Dual Rank LV RDIMMs Hard Drive 2 x 1TB Near Line SAS 7.2K RPM,6Gbps SAS 3.5 " Hot Plug Hard Drive Optical Drive 8X DVD+/-RW Combo Drive Warranty 3 Yrs Next Business Day Onsite Service Chipset Intel C602 Chassis Chassis with up to 4 Hot Plug Hard Drives ,Bezel - 4/8 Drive Chassis,1U Rail Kit Slots 2 PCIe slots Power Dual Hot Plug Power Supplies 550W Availability High-efficiency, hot-plug, redundant power supplies; hot-plug hard drives; TPM; dual internal SD support; fan fault tolerance; optional bezel; luggage tag; ECC memory, interactive LCD screen; ENERGY STAR® compliant OS Support Microsoft® Windows Server® 2012, Microsoft Windows Server 2008 R2 SP1, x64 (includes Hyper-V®), Novell® SUSE® Linux Enterprise Server, Red Hat® Enterprise Linux® Raid Controller PERC H310 Integrated RAID Controller Support Raid 0,1,10,5,50 Network Controller Integrated Broadcom BCM5720 1000 Base-T Ethernet controller dual ports