PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs?

can i use gen 4 nvme in gen 3 slot   Dan can i put pcie x4 in x16 slot

Solved: Does installing gen4 NVMe SSD on PCIe 3 slot affect the speed? or should i buy 3 gen3 NVMe ssd? Please give me some advice

Then we can get a detailed information about the slot and the device by the following commands Note using sudo PCIe Gen 4 will be compatible with PCIe Gen 5 A PCIe Gen 4 device, however, will be constrained to Gen 4 requirements when put into a Gen 5

slot systems limited 2 NVMe drive of 2280 sizing It has 4x PCIe Hi there, I'm trying my first build and I bought a samsung 980 PCIe NVMe SSD which is a PCIe Gen x4, NVMe interface