The article mentions AM4 boards and many of those are PCIe 3.0. https://www.reddit.com/r/buildapc/comments/ilz8v6/which_am4_motherboards_have_pcie_40/?rdt=3293

The article mentions AM4 boards and many of those are PCIe 3.0. https://www.reddit.com/r/buildapc/comments/ilz8v6/which_am4_motherboards_have_pcie_40/?rdt=32938 https://www.reddit.com/r/buildapc/comments/ilz8v6/which_am4_... Chipset PCIe Version Supported X570 PCIe 4.0 (both GPU/NVMe) B550 PCIe 4.0 (GPU/NVMe; other lanes are PCIe 3.0) A520 PCIe 3.0 X470 PCIe 3.0 B450 PCIe 3.0 X370 PCIe 3.0 B350 PCIe 3.0 A320 PCIe 3.0