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DisplayLenovo ThinkPad R400 7439WSN 
Screen Size14.10 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:10
Backlight TechnologyCCFL
Graphics Controller ManufacturerIntel
Graphics Controller ModelGMA 4500MHD
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityShared
MemoryLenovo ThinkPad R400 7439WSN
Memory Card SupportedMultiMediaCard (MMC), Memory Stick, Memory Stick PRO, Secure Digital (SD) Card, Secure Digital High Capacity (SDHC), xD-Picture Card, xD-Picture Card Type H
Maximum Memory4 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1066/PC3-8500
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkLenovo ThinkPad R400 7439WSN
Ethernet TechnologyGigabit Ethernet
DimensionsLenovo ThinkPad R400 7439WSN
ColorBlack
Detailed SpecsLenovo ThinkPad R400 7439WSN
MicrophoneYes
SpeakersYes
ProcessorLenovo ThinkPad R400 7439WSN
Chipset ManufacturerIntel
Chipset ModelGM45 Express
I/O ExpansionsLenovo ThinkPad R400 7439WSN
Expansion Slot TypeExpressCard/54
BatteryLenovo ThinkPad R400 7439WSN
Battery ChemistryLithium Ion (Li-Ion)
InterfacesLenovo ThinkPad R400 7439WSN
Total Number of USB Ports3
Number of USB 2.0 Ports3
VGAYes
Audio Line InYes
Audio Line OutYes