Sumsang Series 9 Premium Ultrabook 13.3 Core i7 Model No NP900X3D-A03US Comes with Windows 8 Pro (64-bit) Operating System. Intel Core i7-3517U, 1.9 GHz (turbo up to 3.0 GHz), 4MB processor, 4GB, DDR3 (1600MHz) RAM Memory, 256GB Solid State Drive. Sumsang Series 9 Premium Ultrabook 13.3 Core i7 also has 3W Stereo Speaker (1.5W x 2), SoundAlive HD Audio, 720p HD Webcam, Dolby Home Theater, Yes (Dual Array) Mic, Blacklit keboard and no of keys 80, The Laptop is 12.3 x 8.6 x 0.51 inches Physical Dimension and 1.49lb , SuperBright plus Technology, 400nits brightnes Weight, Slot 3-in-1 (SD, SDHC, SDXC) Multi-media Card Reader, 1600 x 900 HD, 13.3 inches screen size, 4 Cell / Li-Po and 62WHr Up to 9 Hours battery, Series 9 Premium Ultrabook 13.3 Core i7 is 1 x USB 3.0 + 1 x USB 2.0 USB ( Totle No of USB 2), 4.0v Bluetooth, internet, HDMI and VGA by Sumsang.