Dell OptiPlex 990 Mini Tower Desktop Quad Core i5-2400 3.10GHz 8GB DDR3 RAM 1TB HD DVD-RW Windows 7 Professional 64-Bit-USED with FREE 3 Year Warranty provided by CPS. - Walmart.com
Dell Optiplex 990 MT Intel Quad Core i7-2600 3.40GHz CPU 4GB RAM No HD