CPU: Intel Core i3-380UM Processor (1.33GHz,GIGABYTE Smart Turbo up to 1.77GHz) Intel Core i5-470UM Processor (1.33GHz, Turbo Boost up to 1.86GHz) Display: 11.6'' Capacitive Multi-touch Panel 1366x768 LED backlight System Memory: 2GB/4GB DDRIII, 2 slots (Max 8GB) Chipset: Mobile Intel HM55 Express Chipset Video Graphics: Intel HD Graphics with dynamic frequency NVIDIA GeForce 310M DDRIII 512MB Supports NVIDIA Optimus Technology Hard Disk Drive: 320/500GB 2.5"9.5mm SATA HDD 5400rpm Optical Disk Drive: Docking Station includes slot-in DVD- Super Multi Dual-Layer Drive I/O Port: USB(3.0)*1, USB(2.0)*1, eSATA/USB Combo*1, HDMI, D-sub, RJ45, Mic-in,Earphone-out, 4-in-1 Card Reader (SD/MMC/MS/MS Pro), DC-in Jack, Docking Port Audio: 2 Watt Speaker*4 (Including 2 Woofer speaker), Internal Microphone Communications: LAN: 10/100/1000Mbps Ethernet Base-T Wireless LAN: 802.11 b/g/n Wireless Bluetooth: Bluetooth V2.1 + EDR WWAN (3.5G): 3.5G Antenna built-in, 3.5G Module supported(Optional) Webcam: 1.3 MegaPixel Security: Kensington Lock Battery: Li-ion 6-cell Dimension: 290(W) x 220.7(D) x 27.86~40(H) mm Weight: ~1.73Kg (w/ 6-cell battery) Docking Station I/O Port(Optional): ODD, USB(3.0)*2, USB(2.0)*2, HDMI, D-sub, RJ45, Earphone-out, Mic-in, DC-in Jack