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This replacement CPU cooling fan is specially designed for Dell Latitude 15 5520 E5520 and Precision 3560 series. Adopting 5V 4PIN standard interface, it perfectly matches the original fan model DFS5K22305283J, FN6B and part number 0DXJNV. It provides steady and powerful airflow to quickly exhaust internal heat, solving common issues like abnormal fan noise, overheating and unexpected shutdowns. Precise mounting structure fits the laptop perfectly, enabling plug-and-play installation without modification, ideal for laptop maintenance and cooling fan replacement.