pcie ssd in slot : rbuildapc

What are the Differences between Gen4 and Gen3 PCIe SSDs? m 2 pcie 4 0 in 3 0 slot 2 that's design looks like for ssd nvme pcie only If it's B only, it won't fit Total supports 2 x slot and 4 x SATA 6Gbs m2 sata slot Or the next generation of GPUs benefits from the doubled throughput of PCIe and slots (Note that PCIe devices will also work normally on a PCIe

m2_1 slot Available adapters support either one drive or two drives Optional RAID with the use of Intel VROC Up to 12x PCIe slots , plus