Lenovo ThinkPad T500 15.4" WXGA TFT (1280 x 800) LED Backlight, Mobile Intel GM45 Express chip set, Mobile Intel GMA 4500MHD, Integrated fingerprint reader, Intel Core 2 Duo processor P8600, 160 GB / 7200 rpm HDD, DVD Recordable drive, ExpressCard slot, PC Card slot, 2GB Memory, Intel Wireless WiFi Link 5100 AGN (1 x 2), Genuine Windows Vista Business with Windows XP Professional downgrade preinstalled, 6-cell Li-Ion battery)