Included: Dell R720XD Server 12 x 3.5" Hot Plug, E5-2609 Quad Core 2.4Ghz Processor, 16GB of RAM, DVD Optical Drive, H710 512MB 6Gbps Raid Controller, 2x 750W Redundant Power Supplies, and Power Cable. Not Included: Rails, Bezel, Operating System, Hard Drives or Trays, and Mouse and Keyboard.