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DisplayLenovo ThinkPad W520 4282W5S 
Screen Size15.60 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeHD
Screen Resolution1600 x 900
Backlight TechnologyLED
Switchable GraphicsYes
Graphics Controller ManufacturerNVIDIA, Intel
Graphics Controller ModelQuadro 1000M, HD 3000
Graphics Memory CapacityUp to 2 GB
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityDedicated, Shared
Hard DriveLenovo ThinkPad W520 4282W5S
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Optical Drive TypeDVD-Writer
MemoryLenovo ThinkPad W520 4282W5S
Memory Card SupportedMultiMediaCard (MMC), Secure Digital (SD) Card, Secure Digital High Capacity (SDHC), Secure Digital Extended Capacity (SDXC)
Standard Memory4 GB
Maximum Memory32 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots4
Memory Card ReaderYes
NetworkLenovo ThinkPad W520 4282W5S
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN StandardIEEE 802.11a/b/g/n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 3.0
DimensionsLenovo ThinkPad W520 4282W5S
Height1.4"
Width14.7"
Depth9.7"
Weight (Approximate)92.0 oz
Detailed SpecsLenovo ThinkPad W520 4282W5S
MicrophoneYes
SpeakersYes
ProcessorLenovo ThinkPad W520 4282W5S
Processor ManufacturerIntel
Processor TypeCore i7
Processor Modeli7-2760QM
Processor Speed2.40 GHz
Processor CoreQuad-core (4 Core)
Cache6 MB
Chipset ManufacturerIntel
Chipset ModelQM67 Express
SoftwareLenovo ThinkPad W520 4282W5S
Operating SystemWindows 7 Home Premium
Operating System Architecture32-bit
Input DevicesLenovo ThinkPad W520 4282W5S
Pointing Device TypeTouchPad, Trackpoint
TouchPad FeaturesMulti-touch Gesture
I/O ExpansionsLenovo ThinkPad W520 4282W5S
Expansion Slot TypeExpressCard/34
BatteryLenovo ThinkPad W520 4282W5S
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time10.80 Hour
InterfacesLenovo ThinkPad W520 4282W5S
Total Number of USB Ports4
Number of USB 2.0 Ports2
Number of USB 3.0 Ports2
VGAYes
Audio Line OutYes
eSATA/USB ComboYes
DisplayPortYes