USB PCIe card in x16 slot?

PCIex1 to PCIex16 Graphics Card Extension Board pcie x16 expansion slot Description Features Downloads The OSS-BP-580 expansion backplane provides five PCIe x16 downstream expansion slots for the latest PCIe add-in cards pcie m2 slot SATA 3 Expansion Cards; Network Adaptors; Video Capture Cards PCIe x8 & PCIe x16 Slots:

pcie slot function The biggest and best PCI Express slot is the PCI Express x16 slot Pretty much the only thing that uses x16 slots outside of graphics cards is server-grade