Lenovo ThinkPad X240 20AL0091US 12.5" LED (IPS) Ultrabook - Intel Core i5 i5-4300U 1.90 GHz 12.5" HD (1366 x 768) TFT color, anti-glare, LED backlight, 300 nits, 16:9 aspect ratio, 700:1 contrast ratio, IPS Intel Core i5-4300U processor (2 cores, 1.90GHz, 3MB cache), Intel HD Graphics 4400 8GB PC3-12800 1600MHz DDR3L RAM, 500GB 7200rpm hard drive, fingerprint reader, 16 GB smart card reader, backlit keyboard, 3+3 battery cells (int+ext), vPro Windows 7 Professional 64 preinstalled through downgrade rights in Windows 8 Pro 64-bit Limited 3 Year Lenovo Warranty / 1 year battery