Intel Core 2 Duo Processor T6500 (2.0GHz; 2MB; 800MHz), Genuine Windows Vista Home Premium 64 SP1, 15.6" widescreen LED Backlit WXGA VibrantView (1366 x 768), Mobile Intel Graphics Media Accelerator X4500MHD(Up to 1759MB), 320GB SATA (5400 rpm) 4GB, Up to 8GB PC3-8500 DDR3 SDRAM 1066MHz, Dual Layer DVD Recordable, 1.3 megapixel integrated camera, 2 stereo speakers + 1 sub-woofer with Dolby Home TheatreTM 2 Certification; Array Build in Microphone with Echo Cancellation and Noise Reduction, 10/100/1000M Ethernet; Intel Wifi Link 5100 AGN, Norton Internet Security software; Kensington lock slot, 6-cell Li-Ion battery. Windows Vista battery life up to 4.5 hrs; Included Software: VeriFace 3.5; EasyCapture 3.5; OneKey Rescue System 6.0; Lenovo Energy Management Software 3.1; OneKey Theater; Lenovo ReadComm 4.0; Lenovo Desktop Navigator; Dolby control center; Adobe Reader 8.1; Power2GO 5.5; Norton Internet Security 2008 (90 days of virus definition); Microsoft/Lenovo portal; Windows Live 1.0; Microsoft Office Ready 2007 Trial, Napster; DDNi; Expansion: 3 USB 2.0; 1 ESATA Combo with USB; IEEE 1394; VGA; HDMI; CIR; 6-in-1 card reader(SD/SD pro/MS/MS pro/MMC/xD); Express Card 34mm; 3 Mini-PCIe Slots(WLAN); Microphone input jack; Headphone jack(SPDIF)