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Basic SpecsHP ProBook 6440b (NN223EA) 
Typenotebook
Operating SystemWin 7 Professional
ProcessorHP ProBook 6440b (NN223EA)
ProcessorCore i3 2260 MHz
Processor Model350M
Number of Cores2
L3 Cache3 MB
Chipset ModelIntel HM57
MemoryHP ProBook 6440b (NN223EA)
Memory2048 MB DDR3 1333 MHz
Maximum Memory8192 MB
Number of Total Memory Slots2
DisplayHP ProBook 6440b (NN223EA)
Display14-inch, 1366x768, widescreen
Display Screen Typemat
Backlight TechnologyLED
Graphics Controllerbuilt-in
Graphics Chipset ModelIntel GMA HD
Graphics MemorySMA
Storage DevicesHP ProBook 6440b (NN223EA)
Optical Drive TypeDVD-RW, removable
Storage Size250 GB Serial ATA
Hard Drive Speed7200 r/min
CommunicationHP ProBook 6440b (NN223EA)
LAN/ModemNIC 1000 Mbit/s, a fax modem
Wireless Communicationbluetooth, Wi-Fi 802.11n
Bluetooth Standard2.1 EDR
InterfacesUSB 2.0x4, FireWire, Connector for docking station, VGA (D-Sub), DisplayPort, microphone input, audio output/headphone, LAN (RJ-45) and modem (RJ-11)
Expansion slotsHP ProBook 6440b (NN223EA)
ExpressCard slotExpressCard/54
Memory Card ReaderYes
BatteryHP ProBook 6440b (NN223EA)
Number of Battery Cells6
Battery ChemistryLi-Ion
Input DevicesHP ProBook 6440b (NN223EA)
Pointing Device TypeTouchpad
AudioHP ProBook 6440b (NN223EA)
SpeakersYes
MicrophoneYes
Detailed SpecsHP ProBook 6440b (NN223EA)
WebcamYes, 2 million pixels
Dimensions (HxWxT)339x236.2x33.8 mm
Weight2.26 kg
Additional informationadditional built-in smart card reader (replaces slot ExpressCard/54), Fingerprint Sensor, Kensington lock slot and a manipulator pointstick (optional)