What are the Differences between Gen4 and Gen3 PCIe SSDs?

Can I plug an M2 to a PCIe Gen3X4 slot? m 2 slot with pcie x4 lanes The next issue is that the x16 @ x4 slot also shares PCIe lanes, this time with the second and third PCIe x1 slots If you use a PCIe x1 card in m2 sata slot The card physically has an X4 interface, so it could be plugged into an X4, X8, or X16 slot It can still physically only access 4 lanes (else

m2 slot screw It will not affect the videocard And as been said, the NVME slot will go to PCIe instead #2