Dell 5547 15.6-Inch windows 7 Backlit Keyboard laptop (i7-4510U 4M Cache, up to 3.1 GHz, 8G,1T) Processor: Intel Core 4th Generation i7-4510U Processor (4M Cache, up to 3.1 GHz) Intel Dual Band Wireless-AC 3160 802.11ac, 1x1, 2.4 & 5GHz + Bluetooth 4.0 15.6 Inch High Definition (1366 x 768) LED Display with TrueLife 8GB DDR3L Memory / 1 TB HDD / Backlit Internal Keyboard Windows 7 Home Premium 64 bit