Processor & Cache Memory Intel Core i3 Processor 380UM : 1.33 GHz Intel Celeron Processor U3400 : 1.02 GHz Chipset Mobile Intel HM55 Express Chipset Main Memory DDR3 1066 MHz SDRAM, 2 x SODIMM socket for expansion up to 4GB SDRAM Display 12.1" 16:9 HD (1366x768) LED backlit Video Graphics & Memory Integrated Intel GMA HD Hard Drive 640GB,5400rpm 500GB,5400rpm 320GB,5400rpm Card Reader 5 in 1 card reader SD,MMC,MS,MS-Pro,XD Video Camera 0.3 Mega Pixel web camera Fax/Modem/LAN/WLAN Intel WiFi Link 1000 Integrated 802.11 b/g/n or 802.11b/g Built-in Bluetooth V2.1+EDR (optional) 10/100/1000 Base T Wimax 802.16e 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 stereo speakers Altec Lansing speakers SRS Premium Sound Battery Pack & Life 6 cells: 4400 mAh 48.84 Whrs 6 cells: 5600 mAh 62.16 Whrs AC Adapter Output: 19 V DC, 3.43 A, 65W Input: 100~240 V AC, 50/60 Hz universal 3/ 2 pin compact power supply system Dimension & Weight 29.6 x 21.0 x 2.51~3.09 cm (W x D x H) 1.56 kg (with 6 cell battery) Security BIOS Booting / HDD User Password Protection