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DisplayHP ProBook 4720s LK627LA 
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 1 GB
Graphics Memory AccessibilityDedicated
Hard DriveHP ProBook 4720s LK627LA
Storage Size750 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM5400
Optical Drive TypeBlu-ray Reader/DVD-Writer
MemoryHP ProBook 4720s LK627LA
Memory Card SupportedMultiMediaCard (MMC), Secure Digital (SD) Card, Memory Stick, Memory Stick PRO, xD-Picture Card
Standard Memory4 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1066/PC3-8500
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkHP ProBook 4720s LK627LA
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN StandardIEEE 802.11b/g/n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 2.0
DimensionsHP ProBook 4720s LK627LA
Height1.1"
Width16.2"
Depth10.5"
Weight (Approximate)108.8 oz
ColorBlack
Detailed SpecsHP ProBook 4720s LK627LA
WebcamYes
MicrophoneYes
ProcessorHP ProBook 4720s LK627LA
Processor ManufacturerIntel
Processor TypeCore i7
Processor Modeli7-640M
Processor Speed2.80 GHz
Processor CoreDual-core (2 Core)
Cache4 MB
Chipset ManufacturerIntel
Chipset ModelHM57 Express
SoftwareHP ProBook 4720s LK627LA
Operating SystemWindows 7 Professional
Operating System Architecture64-bit
Input DevicesHP ProBook 4720s LK627LA
Pointing Device TypeClickPad
I/O ExpansionsHP ProBook 4720s LK627LA
Expansion Slot TypeExpressCard/34
BatteryHP ProBook 4720s LK627LA
Battery ChemistryLithium Ion (Li-Ion)
InterfacesHP ProBook 4720s LK627LA
HDMIYes
Total Number of USB Ports4
Number of USB 2.0 Ports4
VGAYes
eSATA/USB ComboYes