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DisplayHP ProBook 4720s WQ426LA 
Screen Size17.30 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeWSXGA
Screen Resolution1600 x 900
Backlight TechnologyLED
Graphics Controller ManufacturerATI
Graphics Controller ModelMobility Radeon HD 4350
Graphics Memory CapacityUp to 512 MB
Graphics Memory AccessibilityDedicated
Hard DriveHP ProBook 4720s WQ426LA
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
MemoryHP ProBook 4720s WQ426LA
Memory Card SupportedSecure Digital (SD) Card, MultiMediaCard (MMC), Memory Stick, Memory Stick PRO, xD-Picture Card
Standard Memory4 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkHP ProBook 4720s WQ426LA
Ethernet TechnologyGigabit Ethernet
DimensionsHP ProBook 4720s WQ426LA
Height1.2"
Width16.1"
Depth10.6"
Weight (Approximate)109.28 oz
Detailed SpecsHP ProBook 4720s WQ426LA
MicrophoneYes
ProcessorHP ProBook 4720s WQ426LA
Processor ManufacturerIntel
Processor TypeCore i5
Processor Modeli5-520M
Processor Speed2.40 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Chipset ManufacturerIntel
Chipset ModelHM57 Express
SoftwareHP ProBook 4720s WQ426LA
Operating SystemWindows XP Professional Upgradable to Windows 7 Professional
Input DevicesHP ProBook 4720s WQ426LA
Pointing Device TypeClickPad
I/O ExpansionsHP ProBook 4720s WQ426LA
Expansion Slot TypeExpressCard/34
BatteryHP ProBook 4720s WQ426LA
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time6 Hour