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DisplayLenovo ThinkPad R400 7439BE2 
Screen Size14.10 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:10
Screen ModeWXGA
Screen Resolution1280 x 800
Backlight TechnologyCCFL
Graphics Controller ManufacturerIntel
Graphics Controller ModelGMA 4500MHD
Hard DriveLenovo ThinkPad R400 7439BE2
Storage Size160 GB
Hard Drive InterfaceSerial ATA/150
Hard Drive RPM5400
Solid State Drive CapacityNo
Optical Drive TypeDVD-Writer
MemoryLenovo ThinkPad R400 7439BE2
Standard Memory2 GB
Maximum Memory4 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1066/PC3-8500
Number of Total Memory Slots2
NetworkLenovo ThinkPad R400 7439BE2
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN StandardIEEE 802.11n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 2.1
DimensionsLenovo ThinkPad R400 7439BE2
Height1.4"
Width13.2"
Depth9.4"
Weight (Approximate)86.72 oz
ColorBlack
Detailed SpecsLenovo ThinkPad R400 7439BE2
WebcamYes
MicrophoneYes
Finger Print ReaderYes
ProcessorLenovo ThinkPad R400 7439BE2
Processor ManufacturerIntel
Processor TypeCore 2 Duo
Processor ModelP8600
Processor Speed2.40 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Bus Speed1066 MHz
Chipset ManufacturerIntel
Chipset ModelGM45 Express
SoftwareLenovo ThinkPad R400 7439BE2
Operating SystemWindows 7 Professional
Input DevicesLenovo ThinkPad R400 7439BE2
Pointing Device TypeTouchPad, Trackpoint
I/O ExpansionsLenovo ThinkPad R400 7439BE2
Expansion Slot TypeExpressCard/54
BatteryLenovo ThinkPad R400 7439BE2
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time5 Hour
InterfacesLenovo ThinkPad R400 7439BE2
Total Number of USB Ports3
Number of USB 2.0 Ports3