Lenovo ThinkPad W550s 20E10010US 15.5" LCD Mobile Workstation - Intel Core i7 i7-5600U Dual-core (2 Core) 2.60 GHz - 8 GB DDR3L SDRAM - 256 GB SSD - Windows 7 Professional 64-bit upgradable to Windows 8.1 Pro - 1920 x 1080 - Black

Lenovo ThinkPad W550s - featuring a powerful combination of performance, functionality and mobility. With eye-popping graphical processing power, mechanical docking and the best battery life of any mobile workstation, the ThinkPad W550s is one of the most innovative ultrabook workstations available to users today and an ideal solution for professionals requiring seamless productivity in the office or in the field.