PCI Express^® (PCIe^®) technology is the most important high-speed serial bus in servers. Due to its high bandwidth and low latency characteristics, PCI Express architecture is widely used in various server interconnect scenarios, such as:

At PCI-SIG, we take pride in ensuring that our specifications operate without a hitch. However, sometimes PCI Express developers need to submit Engineering Change Requests (ECRs) to update parts of the specification so that PCIe integrated products can reach their optimal functionality.