PCI Express® External Cabling Specification Revision 2.0
PCI-SIG announces the availability of the PCI Express® External Cabling Specification Revision 2.0. This is a companion specification to the PCI Express Base Specification. Its primary focus is the implementation of cabled PCI Express®. The discussions are confined to copper cabling and their connector requirements to meet the PCI Express signaling needs at 5.0 GT/s. No assumptions are made regarding the implementation of PCI Express compliant Subsystems on either side of the cabled Link; e.g., PCI Express Card Electromechanical (CEM), ExpressCard™, ExpressModule™, PXI Express™, system board, or any other form factor. Such form factors are covered in other separate specifications.
Be sure to check the list of PCI Express ECNs for the latest updates for this specification.