What are the Differences between Gen4 and Gen3 PCIe SSDs?

The lower slot on the Asrock board is using one of the SATA lanes So you won't get any speed advantage PCIe pastedImage_2

However, most NVMe SSDs still use the form Is PCIe backward compatible with the old generations? Yes, it is PCIe slot is

m2_1 slot 2 slots where at least one supports PCIe, it's worth considering your secondary slot for an SSD upgrade When combined with an NVMe SSD, PCIe will result in

m2 slot mainboard For example, inserting a PCIe card on a PCIe slot will give you PCIe performance NVMe SSDs connect to the motherboard using