Beyond The Specification: What Really Determines PCIe Retimer Reach?

As AI servers, storage platforms, networking equipment, and high-performance computing systems continue to scale, PCIe links are being pushed farther than ever before. System architects frequently ask a seemingly simple question: how far can a PCIe retimer extend a connection ? Unfortunately, there is no single answer. The effective reach of a PCIe retimer is influenced by multiple interacting factors that span silicon design, controller intelligence, channel quality, and the transmission medium