Lenovo ThinkPad X1 Carbon 20A70039US 14" Touchscreen LCD Ultrabook - Intel Core i7 i7-4600U Dual-core (2 Core) 2.10 GHz - 8 GB DDR3L SDRAM - 180 GB SSD - Windows 8.1 Pro 64-bit - 1600 x 900 - Black

A carbon fiber roll cage with reinforcement throughout makes the X1 Carbon Ultrabook ultralight, ultradurable and highly portable. Stay unplugged all day, but when needed, boost your battery up to 80% capacity in just 35 minutes.