Enhance the performance of your computer with the Deepcool AK400 DIGITAL Air Cooler. This sleek and stylish black CPU fan has a fan diameter of 120 mm and a maximum fan speed of 1850 RPM, providing a maximum airflow volume of 68.99 CFM. The fluid bearing type ensures a smooth and quiet operation, while the copper material ensures durability and longevity. Designed for computers, tablets, and networking, this fan is a perfect fit for any system. With a power connection of 4-pin and a voltage of 12 V, it is easy to install and use. The Deepcool AK400 DIGITAL Air Cooler is a must-have for anyone looking to enhance their computer\'s cooling system.