Dell OptiPlex 960 SFF Desktop Intel Core 2 Duo E8400 3.0GHz 4 GB DDR2 RAM 1 TB HD DVD-RW WiFi Bluetooth Microsoft Windows 7 Professional 64-bit Microsoft Windows 7 Professional 64-bit pre-installed w/CoA Intel Core 2 Duo E8400 3.0 GHz CPU Intel Q45 Express Chipset w/ICH10DO 4 GB DDR2 SDRAM, 1 TB hard drive, DVD-RW drive