Processor & Cache Memory Intel Core i5 Processor 560M/460M : 2.66 GHz - 2.53 GHz, with Turbo Boost up to 3.33/2.8 GHz ; Intel Core i3 Processor 380M/370M : 2.53 GHz - 2.4 GHz, Chipset Mobile Intel HM55 Express Chipset Main Memory DDR3 1333 MHz SDRAM, 2 x SODIMM socket for expansion up to 8GB SDRAM Display 15.6" 16:9 HD (1366x768)/Full HD (1920x1080) LED backlit,Vesa Like Video Graphics & Memory NVIDIA GeForce GT 425M with 2GB DDR3 VRAM Hard Drive 2.5" 9.5mm SATA 640GB,5400rpm 500GB,5400rpm;7200rpm 320GB,5400rpm Optical Drive DVD Super Multi Double Layer Blu-ray RW Blu-Ray DVD Combo Card Reader 5 in 1 card reader SD,MMC,MS,MS-Pro,XD,MS-Duo Video Camera 2.0 Mega Pixel web camera Fax/Modem/LAN/WLAN Integrated 802.11 b/g/n Built-in Bluetooth V2.1+EDR (optional) 10/100/1000 Base T Interface 1 x Microphone-in jack 1 x Headphone-out jack (S/PDIF) 1 x VGA port/Mini D-sub 15-pin for external monitor 1 x USB 3.0 ports (optional) 2 x USB 2.0 ports 1 x RJ45 LAN Jack for LAN insert 1 x HDMI 1 x WLAN On/Off Switch 1 x E-SATA Audio Built-in speaker and microphone Bang & Olufsen ICEpower Battery Pack & Life 6 cells: 4400 mAh 47 Whrs AC Adapter Output: 19 V DC, 4.74 A, 90 W Input: 100-240 V AC, 50/60 Hz universal Dimension & Weight 39.1 x 26.6 x 2.9~3.9 cm (W x D x H) 2.7 kg (with 6 cell battery) Security BIOS Booting / HDD User Password Protection