Dell Inspiron 15 i7537T 15.6 inch Touchscreen Microsoft Signature Edition Laptop / i5-4210U / 6GB memory / 1TB HDD / No optical drive / Backlit keyboard / webcam / Bluetooth 4.0 / Windows 8.1 64-bit / Silver Intel Core i5-4210U 1.70 GHz with Turbo Boost Technology up to 2.70 GHz 15.6 in LED-backlit touchscreen with Truelife (1366 x 768), 10-finger multi-touch support ; Intel HD Graphics 4400 with shared graphics memory 6GB DDR3L 1600 MHz; 1TB 5400 RPM HDD; Windows 8.1, 64-bit No optical drive; Backlit keyboard; Bluetooth 4.0; Integrated webcam 4 USB 3.0 (1 with PowerShare)  HDMI  Headphone output/Microphone input combo  LAN (10/100/1000) ; 802.11ac/a/b/g/n (Miracast enabled); 4-cell lithium-ion (Up to 6.5 hours)*