How find out if the PCIe is PCIe or PCIe ?

What is PCIe x4 Slot pcie 3 0 x4 slot The card should also supports PCIE x8 slot which is the same speed as PCIE x4 slot as well Do feel free to inquire us if you have any pcie slot dimensions slot x1 228022110 NVMe SSD slot x1 228022110 NVMe SSD slot x1 Memory expansion 1* PCIe x16

pciex16 slot Biostar ; 1, 1 x AMD Socket AM4 CPU ; 2, 4 x DIMM DDR4-4933+ ; 3, 4 x SATA III Connectors ; 4, 1 x PCIe x4 Slots ; 5, 1 x PCIe x4 Slots