Lenovo ThinkServer TS140 70A4001MUX Intel Quad Core Xeon E3-1225v3 4GB RAM 500GB HDD Desktop Server PC Processor: Intel Xeon E3-1225 v3 Quad Core Processor (8M Cache, 3.2 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 3.5" Hard Drives Optical Drive: Slim DVD-ROM Drive Included | Operating System: NONE Included. 1-Year Limited Onsite Manufacturer Warranty