Processor Intel Xeon E3-1225 v3 Quad Core Processor 8M Cache 32 GHz 84W RAM 4GB DDR3 1600MHz ECC RAM Supports up to 32GB RAM 4 x DIMM Sockets Hard Drive 500GB 7200rpm Hard Disk Drive Supports up to 4 x 35 Hard Drives Optical Drive Slim DVD-ROM Drive Included Operating System NONE Included 1-Year Limited Onsite Manufacturer Warranty