New Laptop CPU Cooling Fan For Dell Inspiron 15R 17 17R 3521 3721 5521 5535 5721 74X7K 074X7K DFS470805CL0T (Not fit for N5010 N5110 N7010 N7110 Series) New and high quality Warranty: 5 months quality For Dell Inspiron 15R 17 17R 3521 3721 5521 5535 5721 74X7K 074X7K DFS470805CL0T Not fit for N5010 N5110 N7010 N7110 Series