PCI Express

PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe, is a high-speed serial computer expansion bus standard designed to replace the older PCI, PCI-X, and AGP bus standards. PCIe has numerous improvements over the aforementioned bus standards, including higher maximum system bus throughput, lower I/O pin count and smaller physical footprint, better performance-scaling for bus devices, a more detailed error detection and reporting mechanism (Advanced Error Reporting (AER)), and native hot-plug functionality. More recent revisions of the PCIe standard support hardware I/O virtualization. The PCI Express electrical interface is also used in a variety of other standards, most notably in ExpressCard which is a laptop expansion card interface, and in SATA Express which is a computer storage interface. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video