How PCIe interface developments have changed and advanced

TE Connectivity PCIe Gen 5 CEM Connectors pcie cem The PCIe CEM Interposers will work with Summit T48, T416, M5x, T54 and T516 protocol analyzers Interposers will support a complete suite of testing pcie3 vs pcie4 前面的文章介绍过，PCIe总线除了有Base Spec，还有关于PCIe卡的Spec（又称为CEM Spec，全称为PCI Express Card Electromechanical Specification）。

pcie cem PCIe Test Item · Base Specification · CEM Specification · Transmitter Pulse Width Jitter · Transmitter Preset · Transmitter initial Tx Equalization · Transmitter Link