Asus X551MAV-EB01-B(S) 15.6-Inch Notebook (Intel Dual-Core Celeron N2830 2.16 GHz Processor, 4GB RAM, 500GB HDD, Windows 8.1), Black Intel Dual-Core Celeron N2830 2.16 GHz, 4GB RAM, 500GB Hard Drive 15.6-Inch High-Definition LED-lit display (1366*768) Webcam for Skype. 1x USB 3.0, 1x USB 2.0, 1x HDMI. No optical drive High-speed wireless LAN (802.11n) and fast ethernet LAN port Windows 8.1 Intel Dual-Core Celeron N2830 2.16 GHz Windows 8.1 (64-Bit) GPU/VPU: Intel HD Graphics, Video Memory: Shared system memory and Graphic Type: Integrated Card Memory Speed: DDR3 1600 Backlit Keyboard: Non-backlitWebcam: VGA CameraCard Reader: SD, MMC