This CPU cooling fan is designed specifically for Dell Latitude 14 3420 and 15 3520 2021 models, providing efficient cooling for your computer. With a 4-pin power connection and a voltage of 5V, it is compatible with the mentioned Dell Latitude models, ensuring optimal performance and temperature regulation for your device. Made by the trusted brand Dell, this CPU fan is a reliable and high-quality component for maintaining the health and longevity of your computer.