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Operating System LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH 
Operating system installedWindows 7 Professional
Operating system architecture64-bit
Processor LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Processor manufacturerIntel
Processor family2nd gen Intel Core i5
Processor seriesIntel Core i5-2400 Mobile series
Processor socketSocket 988
Processor modeli5-2430M
Processor cores2
Processor threads4
Processor frequency2.4 GHz
Processor boost frequency3 GHz
Processor operating modes64-bit
Processor cache3 MB
Processor cache typeSmart Cache
Memory LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Internal memory4 GB
Maximum internal memory8 GB
Internal memory typeDDR3-SDRAM
Memory slots2x SO-DIMM
Memory clock speed1333 MHz
Memory layout2 x 2 GB
Hard Drive & Optical Drive LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
HDD capacity500 GB
HDD interfaceSATA
HDD speed7200 RPM
Storage mediaHDD
Number of HDD installed1
Total storage capacity500 GB
Optical drive typeDVD-RW
Card reader integratedNo
Display & Graphics LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Display typeLCD
Display diagonal15.6"
Display resolution1366 x 768 pixels
Aspect ratio16/9
Display surfaceGloss
LED backlightYes
Discrete graphics adapterYes
Discrete graphics adapter modelIntel HD Graphics
Graphics adapter familyIntel
Graphics adapter modelIntel HD Graphics 3000
Graphics adapter dynamic frequency (max)1200 MHz
Graphics adapter base frequency650 MHz
Graphics adapterYes
Interfaces LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Cable lock slotYes
Cable lock slot typeKensington
CardBus PCMCIA slot typeNo
Charging port typeDC-in jack
DisplayPorts1
Docking connectorNo
DVI portNo
Ethernet LAN (RJ-45) ports1
ExpressCard slotYes
Headphone outputs1
Infrared data portNo
S/PDIF out portNo
SmartCard slotNo
Total Number eSATA/USB 2.0 ports1
Total Number USB 2.0 ports4
VGA (D-Sub) ports1
Input Devices LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Pointing deviceThinkPad UltraNav
Audio LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Audio systemHDA
Number of speakers2
Battery LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Battery capacity2600 mAh
Number of battery cells6
Physical Characteristics LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Product colourBlack
Housing materialPlastic
Depth246.8 mm
Height (front)3.2 cm
Height (rear)3.6 cm
Width379.9 mm
Weight2.6 kg
Other features LENOVO ThinkPad L520 NWB5SMHLenovo ThinkPad L520 NWB5SMH
Handheld remote controlNo
TV tuner integratedNo