Final answer:
PCI-X technology's speed depends on the version, with the initial PCI-X 1.0 offering up to 1.06 GB/s and later versions like PCI-X 266 and PCI-X 533 providing up to 2.1 GB/s and 4.3 GB/s respectively.
Step-by-step explanation:
The speed of PCI-X (PCI Extended) technology varies depending on the version. The original PCI-X 1.0 standard, which was an enhancement of the PCI bus, had speeds of up to 133 MHz for 64-bit transfers, providing a peak data transfer rate of 1.06 GB/s. Later versions, such as PCI-X 2.0, offered higher speeds, with frequencies up to 266 MHz (PCI-X 266) and 533 MHz (PCI-X 533), doubling and quadrupling the throughput respectively, achieving peak data rates of 2.1 GB/s (PCI-X 266) and 4.3 GB/s (PCI-X 533) for 64-bit transfers.