Gateway 15.6" 500GB HDD NightSky Black - Intel Pentium Processor T4400 (2.20GHz, 1MB L2 Cache, 800MHz FSB), Windows 7 Home Premium 64-bit, 15.6" HD Widescreen Ultrabright LED-backlit Display, Mobile Intel GL40 Express Chipset, 4096MB DDR2 Dual-Channel 667MHz Memory, Intel Graphics Media Accelerator 4500MHD, 500GB 5400RPM SATA Hard Drive, 8X DVD-SuperMulti Double-Layer Drive, 802.11b/g/Draft-N Wi-Fi CERTIFIED, Built-in Webcam, 2nd Generation Dolby Sound Room Audio Enhancement, Two Built-in Stereo Speakers, Multi-in-1 Digital Media Card Reader, 4 - USB 2.0 Ports, 1 - HDMI Port, Multi-Gesture Touchpad, Dedicated Numeric Keypad, 6-cell Li-Ion (4400 mAh) Battery; up to 3.5 hours battery life.