Lenovo 20AL009CUS ThinkPad X240 13-Inch IPS Technology HD LED Ultrabook (Intel Core i7-4600U, 8GB RAM, 256 GB SSD, Windows 7 Professional 64) Intel Core i7-4600U processor (2 cores, 2.10GHz, 4MB cache), Intel HD Graphics 4400,DDR3L memory controller (up to 1600MHz), Intel Turbo Boost 2.0 (3.30GHz), HT technology 8GB PC3-12800 1600MHz DDR3L RAM fingerprint reader, 3 + 3 battery cells (interior + exterior), HD720p resolution camera, Bluetooth 4.0 wireless 12.5 Inch / 31.7 cm HD (1366x768) TFT color, anti-glare, LED backlight, 300 nits, 16:9 aspect ratio, 700:1 contrast ratio, IPS Manufacturer Warranty: 3 years warranty, 1 year battery