Product Detail Dell OptiPlex 745 Core 2 Duo 1.86 GHz Small Form Factor PC w/20-inch Widescreen LCD Dell OptiPlex 745 Core 2 Duo 1.86 GHz Small Form Factor PC Features: Grade B (see below for description) Black and Gray Small Form Factor design Microsoft Windows XP Professional pre-installed w/CoA Intel Core 2 Duo E6300 1.86 GHz Dual Core processor . The "Dell OptiPlex 745 Core 2 Duo E6300 1.86GHz 2GB 80GB CDRW/DVD 20 Widescreen LCD XP Professional Small Form Factor" is best product for you. We recommended Dell OptiPlex 745 Core 2 Duo E6300 1.86GHz 2GB 80GB CDRW/DVD 20 Widescreen LCD XP Professional Small Form Factor