HP ProBook 6540b
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    Lenovo ThinkPad T400
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    General Class Standard Laptop Standard Laptop
    Operating Sistem Windows 7 Windows 7
    Body Dimensions 14.62 in x 9.76 in x 1.37 in13.21 in x 9.37 in x 1.26 in
    Weight 2.51 kg (5.53 lb)2.14 kg (4.72 lb)
    Color BlackBlack
    Features Rugged:Yes
    Display Size 15.6 inches14.1 inches
    Resolution 1280x800
    LED Yes
    3D NoNo
    Features Surface finish:Glossy
    Processor Name Intel Core i5 i5-430MIntel Core 2 Duo P8600
    Frequence 2.26 GHz2.4 GHz
    Cores 2 per processor2 per processor
    Cache L3 Cache:3.0 MBL2 Cache:3.0 MB
    Arhitecture 32-bit64-bit
    Technology 45nm45nm
    Chipset Mobile Intel HM57 Express
    TDP 2.5W25W
    Features Front side bus (FSB):667 MHzFront side bus (FSB):1066 MHz
    Graphics Type Integrated cardIntegrated card
    Name Intel Intel Graphics Media Accelerator HDIntel 4500MHD
    Memory Capacity 2 GB
    Max Capacity 4 GB4 GB
    Max Capacity Per Slot 2 GB
    Type DDR3DDR3-1066 MHz
    Slots 21
    Total Slots 2
    Storage Capacity 160 GB250 GB
    RPM 7200RPM5400RPM
    Type Hard Disc (HDD)Hard Disc (HDD)
    Interface SATASATA
    Optical Type Reading support: CD DVD
    Writing support: CD DVD    		Reading support: CD DVD
    Writing support: CD DVD
    Networking LAN 1000 mbps1000 mbps
    Wifi Yes (802.11b, 802.11g, 802.11n)Yes (802.11a, 802.11b, 802.11g)
    Bluetooth Yes Version:2.1No
    Modem Yes
    Infrared NoNo
    Wimax NoNo
    UWB NoNo
    Interfaces USB 4 Version:2.03 Version:2.0
    VGA YesYes
    LAN RJ-45RJ-45
    ESata NoNo
    FireWire NoYes (1)
    Expansion Slot ExpressCard (54)
    Microphone Microphone in 3.5mmMicrophone in 3.5mm
    Headphone Audio out 3.5mmAudio out 3.5mm
    Card Reader Yes
    Multi Purpose DriveBay No
    Docking Station Port Yes
    Devices Keyboard Backlight
    Pointing Touchpad (2 Buttons)Touchpad, Pointing stick
    Camera YesYes
    Microphone Yes
    Security Features Fingerprint reader, Smart Card reader Kensington lock, Fingerprint reader
    Baterry Cells 6 cells6 cells
    Type Li-IonLi-Ion
    Capacity 55 WHr
    Autonomy 6.6 Hours

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