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Notebook Computer Guide*
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Notebook Computer Terms
... PCI Express
PCI Express is a new standard for expansion cards that comes in different versions. Presently, we have the x16 and x1 lanes, which will be followed by x4 and x8 versions.
It offers increased bandwidth for example, x1 lane offers 500MB/sec instead of just 133MB/sec for PCI.
In the future, expansion cards will follow the ExpressCard Format, about 1/2 the size of the PC Card standard - most of the notebooks with ExpressCard (at the present time) still have a slot for older formats.
The Notebook Guide
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