Description Commonly Used on models: B450 S/N: T83626001001 - T83626999999 B450_AUS S/N: 20003851 - 20004630 B450_AUS S/N: 9023591 - 9093850 B450_EMC S/N: 20008885 - 20012244 B450_EMC S/N: 9016415 - 9098884 B450F S/N: U16026001001 - U16026999999 B450R S/N: T24225001001 - T24225999999 B452 S/N: U42429001001 - U42429999999 B452R S/N: U42529001001 - U42529999999 BP35 S/N: 9018291 - 9090220 C350 S/N: 20001921 - 20003190 C350 S/N: 9010921 - 9011920 T261X