Lenovo 15.6" Full HD High Performance Business Laptop Computer - 5th Gen Intel Dual-Core i7-5500U Processor 2.4GHz, 16GB Memory, 1TB Hard Drive, Windows 7 Professional 15.6" Full HD LED AntiGlare Display (1920x1080), Intel HD Graphics 5500 5th Generation Intel Core i7-5500U Processor (2.4GHz 1600MHz 4MB, boost up to 3.0 GHz) 16GB PC3-12800 DDR3L RAM 1600 MHz; 1TB Hard Drive; Optical Drive NOT INCLUDED Lenovo AC Wireless; 4 Cell 32 Watt Hour Li-Cylindrical; Bluetooth 4.0; HD Webcam; HDMI; USB 3.0; Fingerprint Reader Windows 7 Professional 64 Pre-installed; Additional Windows 8.1 Pro 64 disc included