Battery Battery type included Lithium-ion Claimed battery life 3 hours Connectivity Network interface 10/100/1000 LAN, Bluetooth, 802.11b, 802.11g Dialup modem Yes USB ports 4 Firewire ports 1 S-Video Yes VGA Yes HDMI No Firewire type 400 Display LCD technology WXGA Natural resolution (max) 1280 x 800 pixels Diagonal screen size 15.4 inch Drives Optical drive DVD-RW Primary hard drive 80 GB General Dimensions (H x W x D) 355 x 254.6 x 25.5 mm Laptop type Ultraportable Weight 2.8 kg Graphics Graphics hardware GeForce Go 7400 Amt of video RAM 256 MB Memory Amt of RAM 2GB RAM type DDR2-533 Memory card reader Yes Other Motherboard chipset Intel 945PM Other features Dual microphones Integrated webcam No TV tuner No Processor Processor type Intel Core Duo Processor speed 1.66 GHz Software Operating system Windows XP Professional Other software included BenQ QMedia Bar, BenQ GMusic, PhotoExplorer, Q-DataTrove, Skype Voice Mail, Trend Micro Anti-Virus, CyberLink Power Director, CyberLink Power DVD, Nero Express 6.0, Acrobat Reader 6.0 Sound Embedded stereo speakers Yes Digital audio output Yes