The fundamental purpose of the PCI-SIG is to deliver a stable, straightforward and compatible standard for PCI devices. PCI-SIG members may download the specifications for free; non-members are invited to purchase the specifications. For more information, please visit the Ordering information page.

The Specifications are grouped into three areas. In each area, there are specs, white papers, and related presentations.  View the PCI Family History document for a history of released specifications.