CPU Cooling Fan for Dell XPS 15 L521X XPS15-L521X 037XGD & 37XGD DC28000B4F0 Please check both the model and picture before biding order. New and high quality Warranty:6 months quality For Dell XPS 15 L521X XPS15-L521X Series Laptop 037XGD & 37XGD DC28000B4F0(Maybe the part number is differece!!)