HP DC5100, HP DC5100 P4 2.66GHz 512MB Ram 40GB HDD Windows XP Pro SP3 Can be upgraded if you have the software Intel Graphics 128MB 8x USB Gigabit Ethernet Front and back sound and mic ports CD ROM Small Form Factor This is a used PC that has been securely wiped and has had Windows XP Pro and all the updates installed, ready for a new home. PC only This is for the PC only no monitor or keyboard or mouse, I do have a new monitor and keyboard for sale as.