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PCI Express
Technology
Networking
The universal socket: how accelerators, NICs and CPUs meet.
You're looking at a technology record: a building block of AI hardware — what it does, who makes it, and which chips and systems use it.
PCIe 5.0 (32 GT/s per lane) hosts today's accelerator cards and 400G NICs; PCIe 6.0 doubles that with PAM4 signaling and arrives with the 2026 platform generation. Retimer chips (Astera, Broadcom) stretch its reach across big chassis.
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Record reviewed as of 2026-01-15 — see Methodology.