Lenovo ThinkPad X240 20AL0092US 12.5-Inch Laptop (2.1 GHz Core i5-3427U Processor, 8GB DDR3L, 500GB HDD, Windows 8 professional) Black 12.5" HD (1366x768) TFT color, In-Plane Switching (IPS), anti-glare, LED backlight, 300 nits, 16:9 aspect ratio, 700:1 contrast ratio Intel Core i7-4600U processor (2 cores, 2.10GHz, 4MB cache), Intel HD Graphics 4400 8GB PC3-12800 1600MHz DDR3L RAM, 500GB 7200rpm Hard Drive, fingerprint reader, backlit keyboard, 16 GB smart cardreader/ M.2 SSD, WWAN upgradeable, 7260 ac, 3 + 3 interior exterior battery cells, vPro Windows 7 Professional 64 preinstalled through downgrade rights in Windows 8 Pro 64-bit Limited 3 Year Lenovo Warranty / 1 year battery