Lenovo Thinkpad E440 20C5004YUS 14-Inch Laptop (2.50GHz Intel Core i5-4200M Processor, 500GB HDD, 4GB DDR3L, Windows 7 Professional 64-bit) Intel Core i5-4200M 2.5 GHz 4 GB DDR3 500 GB 7200 rpm Hard Drive 14-Inch Screen, Integrated Up to 6.3-hour battery life