Should you buy a PCIe or SSD?

Correct, it only caps the maximum bandwidth of the SSD, assuming the drive is capable of exceeding PCIe x4 speeds in the first place It

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

candy blitz bombs slot The card physically has an X4 interface, so it could be plugged into an X4, X8, or X16 slot It can still physically only access 4 lanes

canada post slot of doom Well yeah but if you put this card in an 8x slot then only two of the SSD's would work Wouldn't it just fall back to PCIe 3 speeds?