Genuine Dell CPU Heatsink CPU Cooling Fan Replacement FAN ONLY 4-Pin 4-Wire Inspiron 535, 535s, 537, 537s, 545, 545s, 560, 560s, 570, 570s, 580, 580s Studio XPS 8100 Compatible Part Numbers: C957N, H857C, F2KPP, 0F2KPP, T215K, TJ5T2, Y9M35, JPM3M Compatible Model Numbers: DS08025R12U, AUC0812D, TJ5T2-A008100 Genuine Dell CPU Heatsink CPU Cooling Fan Replacement FAN ONLY 4-Pin 4-Wire Inspiron 535, 535s, 537, 537s, 545, 545s, 560, 560s, 570, 570s, 580, 580s Studio XPS 8100 Compatible Part Numbers: C957N, H857C, F2KPP, 0F2KPP, T215K, TJ5T2, Y9M35, JPM3M Compatible Model Numbers: DS08025R12U, AUC0812D, TJ5T2-A008100 4-Pin 4-Wire 80mm x 80mm x 25mm Compatible Part Numbers:C957N, H857C, F2KPP, F2KPP, T215K, TJ5T2, Y9M35, JPM3M Compatible Model Numbers: DS08025R12U, AUC0812D, TJ5T2-A00