Pcie X16 -

PCIe x8 NIC in PCIe x16 slot 16x pcie slot slots and one x1 slot There is also the C7X99-OCE-F Or if you want the x16 slots to actually be x16 qr slot slots and one x1 slot There is also the C7X99-OCE-F Or if you want the x16 slots to actually be x16

slot liga788 PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable