Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot?

PCI Express can i put a pcie 3 0 in a 4 0 slot Can he plug the PCIe x 16 graphics card into the PCIe x 16 slot on the motherboard? If you can, will it run at least as it did in the candy stash slot A PCIe graphics card will work in a PCIe motherboard slot at PCIe speeds For PCIe graphics cards, maximum graphics throughput

can you win money on slot apps Actually, you can install your ssd in the _1 slot and still have your gpu run at x16 as AlderlakeRaptorlake cpu's have 20 pcie lanes or 16 pcie