ASRock B450M Pro4, 1x PCIeX16 (Gen3.0), 1x PCIeX16 (Gen2.0),1xPCIeX1 ...

ASRock B450M Pro4, 1x PCIeX16 (Gen3.0), 1x PCIeX16 (Gen2.0),1xPCIeX1 ...