Review Zone

PCI Express Specifications and ECRs for Review
PCI-SIG members can influence PCI technology development by submitting engineering change requests (ECRs) as well as reviewing and commenting on draft specifications, ECRs and engineering change notices (ECNs). Members should check the Review Zone regularly for new postings.

Specifications and ECRs currently under review are listed below. PLEASE NOTE: THESE ARE DRAFT SPECIFICATIONS ONLY AND, AS SUCH, ARE SUBJECT TO FURTHER REVISION AND REVIEW WITHOUT NOTICE. THESE DRAFT SPECIFICATIONS ARE PROVIDED TO YOU FOR REVIEW PURPOSES ONLY AND SHOULD NOT BE RELIED UPON FOR DESIGN OR MANUFACTURING PURPOSES. For a list of documents with completed review cycles, visit the PCI Express Review Archive

Additional information on the ECR/ECN process can be found in the Procedures Center.

Documents for Review
Please submit review feedback on all documents below to administration@pcisig.com by the designated review period deadline. All documents for review can be accessed HERE.

PCIe 5.0/6.0 Version 0.5 Internal Cable Specification

  • Review period closes on Friday, May 27, 2022.

PCI Express M.2 Specification, Revision 4.0, Version 1.1

  • Review period closes on Monday, June 27, 2022.

Lane Margining Test Extensions ECR

  • Review period closes on Monday, June 13, 2022.

PCI Express External Cabling R5_V0.5

  • Review period closes on Saturday, June 11, 2022.

ACCESS ALL DOCUMENTS FOR REVIEW HERE