Broadcom’s Thor Ultra 800G Ethernet card uses PCIe Gen6 to enhance AI data center performance through open-standard, high-speed, secure networking.

source https://www.techradar.com/pro/this-is-the-fastest-ethernet-card-ever-produced-broadcom-thor-ultra-800g-nic-uses-pcie-gen6-x16-and-will-only-be-used-in-ai-datacenters