Lenovo ThinkPad T550 20CK000BUS 15.6" LCD Ultrabook - Intel Core i5 (5th Gen) i5-5300U Dual-core (2 Core) 2.30 GHz - 8 GB DDR3L SDRAM - 180 GB SSD - Windows 7 Professional 64-bit upgradable to Windows 8.1 Pro - 1920 x 1080 - Black

The ThinkPad T550 is a 15-inch Ultrabook redefining the business standard laptop. Thin, light and well connected, the T550 is a truly mobile Ultrabook providing no-fuss, high speed computing in a sleek form factor for today's on-the-go business professional. In addition to the already superior battery life packed inside, the T550 can be paired with power bridge technology, a separate battery pack that easily locks into the laptop and continues to power up without closing out files and shutting down to keep users working efficiently.