NVIDIA ConnectX-7 card: PCIe 5.0 x16/x32 network that supports 400GbE
NVIDIAs new ConnectX-7 SKUs teased: PCIe 5.0 x16/x32 with 10/25/40/50/100/200/400GbE connectivity. Yes, PCIe 5.0 x16 and x32!
Supermicro Superblade Pcie Gen International Supercomputing Conference Network Interface Technologies Number Of Network Ports Network Interfaces
Source: tweaktown.com