Delanse&reg; Brand New CPU Cooling Fan for Dell Inspiron M5040 N4050 N5040 N5050 V1450 Laptop (3-PIN) KSB0605HA 23.10779.011 Please check both the model and picture before biding order. New and high quality Warranty:5 months quality for Dell Inspiron M5040 N4050 N5040 N5050 V1450 Laptop (3-PIN) KSB0605HA 23.10779.011Maybe the part number is difference!!