Processor & Cache Memory AMD Phenom II Quad-Core Processor P920 1.6GHZ/2M AMD Phenom II Triple-Core Processor N830, 2.1 GHz AMD Turion 64 X2 Dual-Core Mobile Technology Processor P520, 2.3 GHz AMD Athlon II Dual-Core processor P320, 2.1 GHz AMD V Series processor V120, 2.2 GHz Chipset AMD RX880+SB820M Main Memory DDR3 1066 MHz SDRAM, 2 x SODIMM socket for expansion up to 8GB SDRAM Display 15.6" 16:9 HD (1366x768) LED backlit Video Graphics & Memory ATI Mobility Radeon HD 4200, Hard Drive 640GB,5400rpm 500GB,5400rpm;7200rpm 320GB,5400rpm;7200rpm Optical Drive DVD Super Multi Double Layer Card Reader SD ,MMC, MS card reader Video Camera 0.3 Mega Pixel web camera Fax/Modem/LAN/WLAN Integrated 802.11 b/g/n or 802.11b/g Built-in Bluetooth V2.1+EDR (optional) 10/100/1000 Base T Interface 1 x Microphone-in jack 1 x Headphone-out jack 1 x VGA port/Mini D-sub 15-pin for external monitor 3 x USB 2.0 ports 1 x RJ45 LAN Jack for LAN insert 1 x HDMI Audio Built-in speaker and microphone Altec Lansing speakers SRS Premium Sound Battery Pack & Life 6 cells: 4400 mAh 48.4 Whrs AC Adapter Output: 19 V DC, 3.42 A, 90W Input: 100-240 V AC, 50/60 Hz universal Dimension & Weight 38 x 25.5 x 3.45~3.57 cm (W x D x H) 2.62 kg (with 6 cell battery) Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.