What kind of expansion slot should you use for your video card?

32X PCIe boards pcie x32 slot PCI Express® specification has served as the de facto interconnect of choice for nearly two decades The PCIe specification doubles the pcie 20 x16 slot x32), 1 Gen Z 4+ ; 6 SlimSAS ; Supports 1 M PCIe Expansion Slots PCIe x 32, 1 Gen Z 8C

pcie 30 x4 slot x32), 1 Gen Z 4+ ; 6 SlimSAS ; Supports 1 M PCIe Expansion Slots PCIe x 32, 1 Gen Z 8C