Processor/Speed Intel Core2 Duo processor T9400/P9500 (6 MB L2 cache, 2.53GHz, 1066 MHz FSB, 35 W/25 W), T9600 (6 MB L2 cache, 2.80 GHz,1066 MHz FSB, 35 W) or higher, or P7350/P7450/P8400/P8600 (3 MBL2 cache, 2/2.13/2.26/2.40 GHz, 1066 MHz, 25 W), or T5800/T5900(2 MB L2 cache, 2/2.2 GHz, 800 MHz FSB, 35 W), supporting Intel64 architecture.Core Logic Chipset Mobile Intel GM45 Express Chipset.System Bus Speed 1066 MHz.RAM / Max RAM Up to 2 GB of DDR2 667 MHz memory, upgradeable to 4 GB usingtwo soDIMM modules.Video Subsystem Mobile Intel GM45 Express Chipset with integrated 3Dgraphics, featuring Intel Graphics Media Accelerator 4500MHD(Intel GMA 4500MHD) with up to 1759 MB of Intel Dynamic VideoMemory Technology 5.0 (64 MB of dedicated video memory, up to1695 MB of shared system memory), supporting Microsoft DirectX10.LCD Properties 18.4″ HD+ 1680 x 945 pixel resolution, high-brightness(220-nit) Acer CineCrystal TFT LCD, supporting simultaneousmulti-window viewing via Acer GridVista.Hard Disk Drive One or two 120/160/250/320 GB or larger hard disk drives.Optical Drive 2X Blu-ray Disc/DVD-Super Multi double-layeror8X DVD-Super Multi double-layer.(varies by model)Battery, Primary 71 W 4800 mAh 8-cell Li-ion battery pack.3.5-hour battery life.Acer QuicCharge technology.80% charge in 1 hour.2-hour rapid charge system-off.3-hour charge-in-use.Sound Subsystem Dolby-optimized surround sound system with two built-instereo speakers and one subwoofer supporting low-frequencyeffects.Optimized 2nd Generation Dolby Home Theater audio enhancement,featuring Dolby Digital, Dolby Digital Live, Dolby Pro LogicIIx, Dolby Headphone, Dolby Natural Bass and Dolby Sound SpaceExpander technologies.True 5.1-channel surround sound output.High-definition audio support.S/PDIF (Sony/Philips Digital Interface) support for digitalspeakers.MS-Sound compatible.Built-in microphone.PCCard Support 1 ExpressCard/54 slot.Pointing Device TouchpadPeripheral Subsystem ExpressCard/54 slot.Integrated Acer Crystal Eye webcam.Acer Bio-Protection fingerprint solution.6-in-1 card reader (SD, MMC, MMCplus, MS, MS PRO, xD).Four USB 2.0 ports.HDMI port with HDCP support.Consumer infrared (CIR) port.External display (VGA) port.RF-in jack (optional).Headphone/speaker/line-out jack with S/PDIF support.Microphone-in jack.Line-in jack.Ethernet (RJ-45) port.Modem (RJ-11) port.(varies by model)Modem 56K ITU V.92 PPT approved, Wake-on-Ring readyEthernet Gigabit Ethernet, Wake-on-LAN ready.Intel Wireless WiFi Link 5100/5300 (dual-band quad-mode802.11a/b/g/Draft-N) Wi-Fi CERTIFIED network connection,featuring MIMO technology, supporting Acer SignalUp with Nplifywireless technology.Bluetooth 2.0+EDR (Enhanced Data Rate).(varies by model)Dimensions / Weight 17.3 x 11.8 x 1.6/1.7 inches.9.04 lbs. with two HDDs and 8-cell battery pack.AC Power 100-240V AC AutoSensing AdapterIt is highly recommended to always use the most recent driver version available.Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.