Do You Need a PCIe SSD?

can you use a pcie 4 0 nvme in a 3 0 slot   Dan candy 99 slot

2 slot on your motherboard, you can still use one in a full-size PCIe x4 slot using an adapter But if you want to run your OS from the drive

Support NVMe SSD is in specifications Using very fast SSD does not improve performance as it is not Even though the PCIe 4 slot is backward compatible with the Gen 3 SSD, the fact that you're connecting it to a Gen 4 slot will not increase data

supply slot diffuser PCIe SSDs are twice as fast as PCIe SSDs But next-generation PCIe SSDs will double PCIe Gen 4 speeds  So you can't get full PCIe speed But you also can't get full PCIe speed as described next: The remaining bandwidth that is not used