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DisplayLenovo ThinkPad W520 4284WFZ 
Screen Size15.60 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Backlight TechnologyLED
MemoryLenovo ThinkPad W520 4284WFZ
Memory Card SupportedSecure Digital (SD) Card, Secure Digital High Capacity (SDHC), Secure Digital Extended Capacity (SDXC), MultiMediaCard (MMC)
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Memory Card ReaderYes
NetworkLenovo ThinkPad W520 4284WFZ
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN StandardIEEE 802.11a/b/g/n
Ethernet TechnologyGigabit Ethernet
DimensionsLenovo ThinkPad W520 4284WFZ
Width14.7"
Depth9.7"
Detailed SpecsLenovo ThinkPad W520 4284WFZ
MicrophoneYes
SpeakersYes
ProcessorLenovo ThinkPad W520 4284WFZ
Processor ManufacturerIntel
Processor TypeCore i7
Chipset ManufacturerIntel
Chipset ModelQM67 Express
SoftwareLenovo ThinkPad W520 4284WFZ
Operating SystemWindows 7 Professional
Operating System Architecture64-bit
Input DevicesLenovo ThinkPad W520 4284WFZ
Pointing Device TypeTouchPad, Trackpoint
TouchPad FeaturesMulti-touch Gesture
I/O ExpansionsLenovo ThinkPad W520 4284WFZ
Expansion Slot TypeExpressCard/34
BatteryLenovo ThinkPad W520 4284WFZ
Battery ChemistryLithium Ion (Li-Ion)
InterfacesLenovo ThinkPad W520 4284WFZ
Total Number of USB Ports4
Number of USB 2.0 Ports2
Number of USB 3.0 Ports2
VGAYes
Audio Line OutYes
DisplayPortYes