Inspired by Lenovo’s thinnest and lightest full-function laptop, the featherweight ThinkPad X301, Lenovo engineered its latest laptop, the ThinkPad T400s, to be super-slim at just 0.83 inches thin1 and ultra-light starting under four pounds2. The laptop achieves its skinny frame thanks to the thin 14.1-inch LED screen, solid state drive storage and the second generation Top Cover Roll Cage, which Lenovo first introduced in the ThinkPad X300 laptop. The roll cage’s monocoque carbon reinforced fiber, also used in bicycle frames and airplanes, helps keep the laptop extremely light yet surprisingly sturdy. With this design the laptop weighs nearly 20 percent