Dell Optiplex 960 Desktop - Core 2 Duo - 3.1ghz - 4GB - 250GB - DVDRW - Win 7 Home Core 2 Duo E8500 (6M Cache, 3.16ghz, 1333 MHz FSB) 4GB DDR2 Memory Massive 250GB SATA Hard Drive Genuine Windows 7 pre-installed with Brand New License Certified Pre-Owned PC from a Microsoft Authorized Refurbisher. 1 Year Warranty