On the flip-side of PCI we find PCI-X: an evolution of PCI, which saw most use in servers in its 64-bit version. PCI-X essentially doubles the maximum frequency of PCI (66 to 133 MHz), while ...

PCI and PCI-X are not directly compatible, and you’d be forgiven for thinking that means you’re out of luck if you need to use a PCI-X card in a machine that only has basic PCI slots.

PCIe superseded PCI and PCI-X. Unlike its PCI predecessor, which used a shared bus, PCI Express is a switched architecture of up to 32 independent, serial lanes (x1-x32) that transfer in parallel.

Mini PCI is a subset of the PCI interface that uses a significantly smaller card form factor. Supporting only 3.3 volts and 32 bits of the PCI specification, Mini PCI was designed for peripherals ...