Ensure your HP ProBook remains cool, quiet, and running at its best with this high-quality replacement Laptop CPU Cooling Fan,engineered specifically for HP ProBook 450 G2, 455 G2, 440 G2, 445 G2, and 470 G2 models. This fan is designed to replace a faulty or failing fan to maintain proper airflow and prevent overheating, which can cause damage to internal components and impact overall system performance.