PCI Express

Definition

PCI Express^® (Peripheral Component Interconnect Express), officially abbreviated as PCIe^®, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP standards. It is used to link motherboard-mounted peripherals and as an expansion card interface for add-in boards.

The PCIe electrical interface is also used in a variety of other standards, most notably the ExpressCard laptop expansion card interface.

Source: Wikipedia

Synonyms