ThinkPad T440p 20AWS2H200 BUSINESS LAPTOP i5-4200M 2.5GHz/ 8G 1600MHz SODIMM Memory/256GB Solid State Drive/Windows 7 Professional 64 Processor: Intel Core i5-4200M processor (2 cores, 2.50GHz, 3MB cache) Operating system: Windows 7 Professional 64 - English (Downgraded from Genuine Windows 8.1 Professional) Display: 14.0" HD+ (1600 x 900) LED Backlight w/720p HD Camera Memory: 8 GB PC3-12800 DDR3L SDRAM 1600MHz SODIMM Memory; Graphics: Intel HD Graphics 4600 Hard Drive: 256GB Solid State Drive, Serial ATA3; Optical Drive: DVD Recordable Serial ATA