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Basic Specs Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR 
Typenotebook
Operating SystemWin Vista Home Premium
Processor Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
ProcessorCore 2 Duo 1830 MHz
Processor ModelT5550
Number of Cores2
L2 cache2 MB
The system bus667 MHz
Chipset ModelIntel PM965
Memory Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
Memory3072 MB DDR2 667 MHz
Maximum Memory4096 MB
Display Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
Display15.4-inch, 1280x800, Widescreen
Graphics Controllerdiscrete
Graphics Chipset ModelNVIDIA GeForce 8400M GT
Graphics Memory128 MB
Storage Devices Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
Optical Drive TypeDVD-RW, internal
Storage Size200 GB Serial ATA
Hard Drive Speed5400 r/min
Communication Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
LAN/ModemNetwork 10/100 Mbit/s, a fax modem
Wireless CommunicationWi-Fi 802.11g
InterfacesUSB 2.0x4, FireWire, VGA (D-Sub), LAN (RJ-45) and modem (RJ-11)
Expansion slots Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
ExpressCard slotYes
Memory Card ReaderYes
Memory Card SupportMS, SD
Battery Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
Maximum Battery Run Time2.4 hours
Battery ChemistryLi-Ion
Battery charging time3.4 hours
Input Devices Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
Pointing Device TypeTouchpad
Audio Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
SpeakersYes
Audio chipsetIntel High Definition Audio
Detailed Specs Sony VAIO VGN-NR31ZRSony Vaio VGN-NR31ZR
FeaturesLock slot
Dimensions (HxWxT)360x269.1x37.9 mm
Weight2.9 kg