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DisplayHP ProBook 6550b XT977UT 
Screen Size15.60 "
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 6550b XT977UT
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Optical Drive TypeDVD-Writer
MemoryHP ProBook 6550b XT977UT
Memory Card SupportedMemory Stick, Memory Stick PRO, MMCplus, MultiMediaCard (MMC), Secure Digital (SD) Card, Secure Digital High Capacity (SDHC), xD-Picture Card
Standard Memory4 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10600
Number of Total Memory Slots2
Memory Card ReaderYes
NetworkHP ProBook 6550b XT977UT
Wireless LANYes
Wireless LAN ManufacturerBroadcom
Wireless LAN Model4322AGN
Wireless LAN StandardIEEE 802.11n
Cellular Network SupportedCDMA, GSM, WCDMA
Cellular Data Connectivity TechnologyCDMA2000 (1xEV-DO), EDGE, GPRS, HSPA, UMTS
Ethernet TechnologyGigabit Ethernet
BluetoothNo
DimensionsHP ProBook 6550b XT977UT
Height1.4"
Width14.6"
Depth9.8"
Weight (Approximate)88.0 oz
Detailed SpecsHP ProBook 6550b XT977UT
WebcamYes
MicrophoneYes
Finger Print ReaderYes
ProcessorHP ProBook 6550b XT977UT
Processor ManufacturerIntel
Processor TypeCore i5
Processor Modeli5-460M
Processor Speed2.53 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Chipset ManufacturerIntel
Chipset ModelHM57 Express
SoftwareHP ProBook 6550b XT977UT
Operating SystemWindows 7 Professional
Operating System Architecture64-bit
Input DevicesHP ProBook 6550b XT977UT
Pointing Device TypeTouchPad
I/O ExpansionsHP ProBook 6550b XT977UT
Expansion Slot TypeExpressCard/54
BatteryHP ProBook 6550b XT977UT
Battery ChemistryLithium Ion (Li-Ion)
Maximum Battery Run Time6.25 Hour
InterfacesHP ProBook 6550b XT977UT
FireWire/i.LINKYes
Total Number of USB Ports4
Number of USB 2.0 Ports4
VGAYes
eSATA/USB ComboYes
DisplayPortYes