Connect a low-profile x16 PCI Express card to an x1 slot. This PCIe x1 to PCIe x16 slot expansion adapter provides enhanced compatibility between motherboards and a variety of PCI Express expansion cards, allowing you to install a PCIe card (x1 - x16) into an x1 slot. The PCI Express x1 to x16 adapter accommodates low-profile x2, x4, x8, x12, or x16 PCI Express cards, eliminating the costs and hassle of upgrading a PCIe card or replacing the motherboard for compatibility.