NVIDIA ConnectX-7 card: PCIe x16x32 network that supports

32X PCIe boards pcie x32 slot x32, where the number following 'x' represents how many channels the PCIe slot has A PCIe x1 slot pcie slot width There are many sizes for PCIe on your motherboard ranging from PCIe x1, PCIe x4, PCIe x8, PCIe x16, and PCIe x32 slot Lanes tell you

pcie 4 nvme in pcie 3 slot PCI Express® Version: PCIe® Native PCIe® Lanes : 28 , 24 Additional Usable PCIe Lanes from Motherboard X670E 12x Gen4 X670 12x Gen4