Model # S5603w. Hp pavilion slimline computer with a hp 20" screen. Kept clean and in a smoke free home. In excellent shape and condition. The computer runs great and is fast with no lagging. The screen display is high quality. Hardrive 7200 rpm total hardrive capacity 320GB...maximum allowed memory 4GB processor speed 2.70 GHhz. DVD writer. Windows 7 Home Premium. Screen is a 20"HP model 2009 M with a resolution of 1600x900 with speakers. I can deliver. This is a great computer for a great price.