USB PCIe card in x16 slot?

Risers with up to 4, x8 PCIe Slots + 2, x16 PCIe Slot pcie slot x16 The Matrox C900 PCIe x16 graphic card powers nine displays from a single board to easily build 3x3 video walls P690 Plus LP PCI Matrox P690 Plus LP PCI - pciex16 slot 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

pcie 40 in 30 slot So in the first scenario, both physical x16 slots only provide 8 lanes, in the second scenario the first x16 slot provides 16 lanes (for full