Can I use a PCI-E NVME on my PCI-E motherboard?

Can I use a PCI-E NVME on my PCI-E motherboard? can i use m 2 pcie 4 0 in 3 0 slot For example, if you connect a PCIe expansion card to a PCIe slot, the card will perform to the PCIe specs PCIe Gen 4 offers another can you run pcie 40 in 30 slot It might be possible The length may need to be shorter The only thing stopping gen 4 speed is the quality of the cable PCIe does link

can you run pcie 40 in 30 slot You can plug pcie into slots as it's backwards compatible but the speeds will be limited to Gen 3 It wouldn't be able to go above the

can i use gen 4 nvme in gen 3 slot The current PCIe Gen 3 slots have started to be replaced with PCIe Gen 4, resulting in double the transfer and bandwidth speed, which means you can swap it between slot 3 & 4 no problem I've done it myself I have two separate PCiE adapters, one in slot 3 and one in slot 4 The z370