This is a genuine Dell OEM CPU Heatsink and Fan Assembly for the Dell Precision 7520 Laptops, with Nvidia Graphics Card. Includes two Fans.Compatible Dell Laptops:Precision 7520 with Nvidia graphics cardDell Part Number: XNTR8, 0XNTR8Alt P/N: AT1TS002ZSLIncludes Fans:EG75150S1-C020-S9ADC5V - 0.44A11.7CFMEG75150S1-C010-S9ADC5V - 0.44a11.2CFM