Toshiba Satellite S55T-B5136 15.6" Touchscreen Laptop - Intel Core i7-5500U Processor - 12GB Memory - 2TB Hard Drive - HD WebCam - WiFi - BT - Windows 8.1 5th Generation Intel Core i7-5500U Processor (up to 3.0 GHz, 4M Cache) / Genuine Windows 8.1 64bit Operating system ( Upgrade to windows 10 for free when available ). 12GB DDR3L 1600MHz memory / Mobile Intel HD graphics with shared graphics memory / Built-in harman/kardon stereo speakers / Intel Dual-Band Wireless-AC 3160 with Bluetooth 4.0 2TB hard drive / No Optical drive / Multi-in-One Media card reader / Premium Keyboard with 10-key, LED Backlit / HDMI with 4K Ultra HD output capability 15.6" HD TruBrite LED Backlit Touchscreen display (1366x768) , 16:9 aspect ratio / Built in HD webcam with Digital microphone / Ports: 1-USB (2.0) port, 1-USB (3.0) port, 1-USB (3.0) port with USB Sleep and Charge / Lithium Ion (45Wh, 4-Cell) Battery with up to 6.31 hours battery life