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DisplayLenovo ThinkPad L420 7829W1F 
Screen Size14.00 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeWXGA
Screen Resolution1366 x 768
Backlight TechnologyLED
Graphics Controller ManufacturerIntel
Graphics Controller ModelHD 3000
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityShared
Hard DriveLenovo ThinkPad L420 7829W1F
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Optical Drive TypeDVD-Writer
MemoryLenovo ThinkPad L420 7829W1F
Memory Card SupportedMultiMediaCard (MMC), Secure Digital (SD) Card, Secure Digital High Capacity (SDHC), Secure Digital Extended Capacity (SDXC)
Standard Memory4 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkLenovo ThinkPad L420 7829W1F
Wireless LANYes
Wireless LAN ManufacturerLenovo
Wireless LAN StandardIEEE 802.11b/g/n
Ethernet TechnologyGigabit Ethernet
DimensionsLenovo ThinkPad L420 7829W1F
Height1.4"
Width13.5"
Depth9.2"
Weight (Approximate)82.24 oz
Detailed SpecsLenovo ThinkPad L420 7829W1F
MicrophoneYes
SpeakersYes
ProcessorLenovo ThinkPad L420 7829W1F
Processor ManufacturerIntel
Processor TypeCore i5
Processor Modeli5-2520M
Processor Speed2.50 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Chipset ManufacturerIntel
Chipset ModelHM65 Express
SoftwareLenovo ThinkPad L420 7829W1F
Operating SystemWindows 7 Professional
Operating System Architecture32-bit
Input DevicesLenovo ThinkPad L420 7829W1F
Pointing Device TypeTouchPad, Trackpoint
TouchPad FeaturesMulti-touch Gesture
I/O ExpansionsLenovo ThinkPad L420 7829W1F
Expansion Slot TypeExpressCard/54
BatteryLenovo ThinkPad L420 7829W1F
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time7 Hour
InterfacesLenovo ThinkPad L420 7829W1F
Total Number of USB Ports4
Number of USB 2.0 Ports4
VGAYes
Audio Line OutYes
eSATA/USB ComboYes
DisplayPortYes