USB PCIe card in x16 slot?

PCIe x16 slot, but expose two additional x8 slots One of the smaller slots should accept the HBA, while the other one

SATA 3 Expansion Cards; Network Adaptors; Video Capture Cards PCIe x8 & PCIe x16 Slots:

pcie 4 in pcie 3 slot ssd That mboard only supports PCIe 1, gtx960 is pcie but will work in the slot, however this means a slower data transfer rate = you wont be

pcie slot x16 PCIe x16 slot to be fully functional Ethernet Network Cards (NIC SATA expansion cards are available for PCIe x1, x4, and x8 slots