Short for PCI extended
, an enhanced PCI bus
. PCI-X is backward-compatible
with existing PCI cards. It improves upon the speed of PCI from 133 MBps
to as much as 1 GBps
PCI-X was designed jointly by IBM, HP and Compaq to increase performance of high bandwidth devices, such as Gigabit Ethernet and Fibre Channel, and processors that are part of a cluster.
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