Lenovo ThinkPad X1 Carbon 2nd Generation laptop 20A7002QUS: Windows 7 Pro preinstalled, 14" screen, 256GB SSD, 8GB RAM, wireless. 4th Generation Intel Core i7-4600U processor (4MB Cache, 2.1GHz base, 3.3GHz Max Turbo) 256GB Solid State Drive, 8GB DDR3L 1600 MHz RAM 14-inch, 1600x900 resolution non-touch screen. 250 nits, 400:1 contrast ratio Windows 7 Pro 64-bit preinstalled through Windows 8.1 Pro Downgrade Rights Weight: 2.96 lbs