PCI-E x32 available at gigabytes site :o

NVIDIA ConnectX-7 card: PCIe x16x32 network that supports pcie x32 slot Also, PCI slots are the same sizes for all devices PCIe slots differ depending on which form factor it accepts The longest would be the 16-lane slot and, the pcie slot bracket slots and PCI Express slots are not interchangeable At the software level The PCI Express standard defines link widths of x1, x4, x8, x16, and x32

pcie slot dimensions PCIe Fun Fact: the x32 and x12 interface widths from earlier generations are dropped While these widths are available in PCIe and