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DisplayHP ProBook 4420s WQ430LA 
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 ModelGraphics Media Accelerator HD
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityShared
Hard DriveHP ProBook 4420s WQ430LA
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Optical Drive TypeDVD-Writer
MemoryHP ProBook 4420s WQ430LA
Memory Card SupportedSecure Digital (SD) Card, Memory Stick, Memory Stick PRO, MultiMediaCard (MMC), xD-Picture Card
Standard Memory3 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkHP ProBook 4420s WQ430LA
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN ModelCentrino Advanced-N 6200
Wireless LAN StandardIEEE 802.11n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 2.1
DimensionsHP ProBook 4420s WQ430LA
Height1.1"
Width13.2"
Depth9.2"
Weight (Approximate)80.0 oz
Detailed SpecsHP ProBook 4420s WQ430LA
MicrophoneYes
ProcessorHP ProBook 4420s WQ430LA
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 4420s WQ430LA
Operating SystemWindows 7 Professional Downgradable to Windows XP Professional
Input DevicesHP ProBook 4420s WQ430LA
Pointing Device TypeClickPad
I/O ExpansionsHP ProBook 4420s WQ430LA
Expansion Slot TypeExpressCard/34
BatteryHP ProBook 4420s WQ430LA
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time4.50 Hour
InterfacesHP ProBook 4420s WQ430LA
HDMIYes
Total Number of USB Ports4
Number of USB 2.0 Ports4
VGAYes
eSATA/USB ComboYes