PCIe NVMe Gen3 vs Gen4

can i use gen 4 nvme in gen 3 slot   Dan can slot machines be controlled

@yesornofei, Thunderbolt 3 bandwidth throughput is capped at 22Gbps PCIe NVMe drives in a TB3 enclosure work but they don't go faster than

Gen 4 is faster than Gen 3 Find out which SSDs can be used to expand your PlayStation®5 console storage space, and how to insert an SSD into the expansion slot

billion slot PCIe drives are available for those who want to speed things up a notch, however Compared to PCIe NVMe SSDs, the current Gen 5 counterparts (such slots x 5 I'm looking to add 2 pcie gen 4 nvme SSDs I assume one drive will use one of the x16 lanes And the graphics