<story><title>PCI Express Retimers vs. Redrivers: An Eye-Popping Difference (2019)</title><url>https://www.asteralabs.com/2019/06/26/pci-express-retimers-vs-redrivers-an-eye-popping-difference/</url></story><parent_chain></parent_chain><comment><author>lizknope</author><text>I worked on a PCIE Gen3 retimer.  The problem was you were trying to fool both ends into thinking you weren&amp;#x27;t there and was kind of violating the spec.  PCIE Gen4 has explicitly defined the terms allowing you to make a chip that is compliant with the spec to retime the signal.</text></comment>
<story><title>PCI Express Retimers vs. Redrivers: An Eye-Popping Difference (2019)</title><url>https://www.asteralabs.com/2019/06/26/pci-express-retimers-vs-redrivers-an-eye-popping-difference/</url></story><parent_chain></parent_chain><comment><author>qiqitori</author><text>Nice article. Didn&amp;#x27;t even consider you&amp;#x27;d ever need something like this in a single system. Also never considered that a &amp;quot;redriver&amp;quot; would be able to help at all with multi-GHz signals.&lt;p&gt;(Note: I&amp;#x27;m very unknowledgeable about this topic.)</text></comment>