Can a 64-bit PCI bus running at 100Mhz support four 2Gb/s HBAs? No,
because the architecture only permits the connection of two devices at this
A 64-bit PCI bus running at 133Mhz is a dedicated bus architecture and can
only support one HBA or interface card.
How many 4Gb/s HBAs can be supported? How many 10Gb/s HBAs?
Most high-end servers that would be capable of this much throughput will
probably have multiple PCI buses as well, so 64-bit 100Mhz PCI will generally
meet the needs of today’s networking applications. However, it is clear that the
PCI bus must evolve or be replaced to keep up with the increasing speed of
processors and networks.