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PCI Express® Review Zone

PCI Express Specifications and ECNs for Review

PCI-SIG® Member benefits include the ability to influence the direction of PCI I/O Technology, review draft specifications, and participate in the ECR/ECN process.

This page contains Specifications and ECNs that are currently undergoing member review. Please check here regularly for new material available.

Specifications and ECNs that have completed their review cycle are available in the PCI Express Review Archive

PCIe 4.0 Base Spec Rev 0.5

THIS IS A DRAFT SPECIFICATION ONLY AND, AS SUCH, IS SUBJECT TO FURTHER REVISION AND REVIEW WITHOUT NOTICE. THIS DRAFT SPECIFICATION IS PROVIDED TO YOU FOR REVIEW PURPOSES ONLY AND SHOULD NOT BE RELIED UPON FOR DESIGN OR MANUFACTURING PURPOSES.

The review period for the PCIe 4.0 Base Spec Rev 0.5 will end at 5 p.m. (PT) on Monday, May 11, 2015. Any feedback should be sent to administration@pcisig.com.

PCIe 3.0 External Cabling Spec Rev 0.5

THIS IS A DRAFT SPECIFICATION ONLY AND, AS SUCH, IS SUBJECT TO FURTHER REVISION AND REVIEW WITHOUT NOTICE. THIS DRAFT SPECIFICATION IS PROVIDED TO YOU FOR REVIEW PURPOSES ONLY AND SHOULD NOT BE RELIED UPON FOR DESIGN OR MANUFACTURING PURPOSES.

The review period for the PCIe 3.0 External Cabling Spec Rev 0.5 will end at 5 p.m. (PT) on Monday, May 11, 2015. Any feedback should be sent to administration@pcisig.com.

PCI Express OCuLink Specification Revision 0.9

THIS IS A DRAFT SPECIFICATION ONLY AND, AS SUCH, IS SUBJECT TO FURTHER REVISION AND REVIEW WITHOUT NOTICE. THIS DRAFT SPECIFICATION IS PROVIDED TO YOU FOR REVIEW PURPOSES ONLY AND SHOULD NOT BE RELIED UPON FOR DESIGN OR MANUFACTURING PURPOSES.

The review period for the PCI Express OCuLink Specification Revision 0.9 will end at 5 p.m. (PT) on Monday, May 25, 2015. Any feedback should be sent to administration@pcisig.com.