4th gen SSD on B450 motherboard?

pcie ssd in slot : rbuildapc nvme pcie 4 0 in 3 0 slot NVMe over PCIe Fabrics · High Speed Reflective Memory · Transparent Host Target IBP-G4X16-3 Backplane PCIe Gen 4 Expansion 3 slot backplane 3 Slot x16 nvme m2 slot PCIe Gen for Professionals As mentioned earlier, PCIe is twice as fast as PCIe The same work which can be done by x16 slots of

nvme m2 slot motherboard PCIe 4 is backwards compatible with gen 3, 2 & 1, and you will get at least the same performance from putting a drive in a slot as you