Lenovo ThinkPad T540p 20BE004FUS  15.6-Inch Laptop (2.6 GHz Intel Core i5-4288U Processor, 4GB DDR3, 500GB HDD, NVIDIA GeForce GT 730M, Windows 8 Pro) Black Intel Core i5-4288U 2.6 GHz (3 MB Cache) 4 GB DDR3L SDRAM 500 GB 7200 rpm Hard Drive 15.6-Inch Screen, NVIDIA GeForce GT 730M / Intel HD Graphics 4600 Windows 8 Professional, 11-hour battery life