NBT 3 = X300 NBT 3.1 = X300 NBT 3.2 = X200 NBT 3.3 = X200 NBT 4 = X200 NBT 4.1 = X200 NBT 5 = X300 NBT 5.1 = X200 NBT 5.2 = X200 NBT 5.3 = X200 NBT 6 = X200 NBT 6.1 = X200 NBT 6.2 = X300 NBT 7 = X300