Pentium 4 2.8GHz 512MB of RAM Installed 40GB Hard Drive Four (4) DIMM slots IDE CD-Rom Drive Installed (Various speeds) 1.44 Floppy Drive Installed Windows XP Professional Loaded w/ COA on case Onboard Audio Installed Integrated Video installed Tower Form Factor Four (4) PCI Slots Two (2) PS/2 Ports Eight (8) USB Ports / 6 Back & 2 Front One (1) Serial Port and One (1) Parallel Port Onboard Gigabit Network Installed 30 Day Warranty (Parts and Labor) Keyboard & Mouse NOT Included