Intel Atom Processors N270: 1.60GHz, 533MHz, 512KB L2 cache. 2GB DDR2 533MHz (2GBx1) up to 2GB (1 SODIMM slot support only). 250GB 5400RPM SATA. Intel 945GSE Express chipset. 10/100/1000, Fax Modem. 6 Cell Battery. 3 USB, 1HDMI. 8-in-1 Card Reader/Express Card. OS: Vista Business & XP Pro downgrade CD.