The "LOT OF 15" Noctua NH-U14S 140 mm Premium CPU Cooler Nf-a15 is a high-quality CPU fan with heatsink designed for optimal cooling performance. With a fan diameter of 120 mm and a maximum airflow volume of 90 CFM, this fan can efficiently dissipate heat and keep your CPU running at a low temperature. It is compatible with various socket types including LGA 2011/Socket R, LGA 1155/Socket H2, and LGA 1151, making it suitable for a wide range of computers. The fan operates at a maximum speed of 1500 RPM and uses a fluid bearing for quiet and reliable performance. Made of aluminum and copper, this CPU cooler ensures durability and effective cooling for your system.