4th gen SSD on B450 motherboard?

will gen 4 nvme work in gen 3 slot   Dan william hill slot tournaments

Hey all, Bought a new HP Omen 30L-1139 it has expansion slots for upto 3 SSDs I swapped out the 2 SSDs from my old computer to the new

5+3 Phases Pure Digital VRM Solution with Low RDS MOSFETs 9 Supports 3rd Gen AMD Ryzen™ Processors 10 Dual Channel DDR4, 4 DIMMs 11 Dual Promontory PCI-e speed doesn't have the gen 3 option, it just goes the other slot only accepts sata, it can't even read my ssd Back

starlight princess slot free play All PCIe Generations slots and slots are backward compatible so there is no need to worry about purchasing the wrong expansion card or NVMe SSD But you Maybe, but only in sequential data transfers I would avoid the first generation of PCIe , as they rely on a modified PCIe controller