While we are on the horizon of seeing PCI Express 6.0 devices, there are already early Linux kernel patches beginning to surface for PCI Express 7.0.

The PCI-SIG officially released the PCIe 7.0 specification i nmid-2025. PCI Express 7.0 doubles the raw data rate to 128 GT/s to allow for 512GB/s bi-directional communication in a PCIe 7.0 x16 configuration. PCIe 7.0 retains backwards compatibility with prior PCIe revisions, offers power efficiency improvements, and other enhancements.