1 x pcie 4 0 x16 slot ✓ 1 x pcie x16 slot

Slot 3 = Regular PCI Slot My Asus Xonar DG is installed in this slot 4 Slot 4 = PCIe x16 slot with only PCIe x4 speed This is1 x pcie 4 0 x16 slot,x1, x2, x4, x8 and x16 These designations indicate that slot can handle almost exactly what a PCIe x16 slot can currently handle

Ultra Durable PCIe Armor : The metal back plate of PCIe x16 slot for enhanced durability; PCIe UD Slot X： PCIe x16 slot with 10X strength for graphics card 1 x pcie 4 0 x16 slot,PCI Express also allows flexibility by coming in 4 different slot sizes and matching lane configurations*: PCI Express slots overview x1 x4 x8 x16 Types of

1 x pcie 4 0 x16 slot,1 x PCIe x16 slot I understand the first bullet point, but Why does a PCIe slot which has only 4 lanes physically has 16-slot size?