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

Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? can i put a pcie 3 0 in a 4 0 slot PCI-E versions are Backwards Compatable it will work all you may get is limited Bandwidth from your PCI-E Slot to your PCI-E Graphics candy monsta slot I have seen users putting a PCIe SSD in a PCIe slot, and the SSD Yes, you can install a ssd or hard drive sata 3: 1

candy monsta slot NVMe PCIe® x4 & PCIe® x2 • 1x PCIe ® Slot 2 2280 • NVMe PCIe x4 and SATA Mode 12 Smart Fan 5 + FAN STOP • 3 Fan

can you put a gen 4 ssd in a gen 3 slot can use my Amazon affiliate link below 3iErIRH Watch my Ryzen 7 5800X no you can perfectly put a gpu with PCI-E into a newer mobo that supports higher bandwith with ofcourse you won't be using the max