The be quiet! BK022 Dark Rock Pro 4 CPU Air Cooler is a high-quality cooling solution designed for CPUs with a TDP of up to 250W. With a 135mm fan diameter and fluid bearing type, this CPU fan with heatsink operates quietly and efficiently. It is compatible with various socket types such as LGA 1366/Socket B and LGA 1151, providing optimal cooling performance for a wide range of processors. Made of aluminum and copper materials, this cooler ensures excellent heat dissipation and durability. The 4-pin power connection and 12V voltage supply make it easy to install and use, making it a reliable choice for computer enthusiasts and professionals alike.