The USED be quiet! BK024 Dark Rock Slim CPU Cooler is a high-quality cooling solution for personal computers. With a 120mm fan diameter and a sleek black design, this CPU cooler is designed for optimal performance and noise reduction. The model BK024 comes with a 30-day money-back guarantee and professional customer service to ensure your satisfaction. Weighing only 1.3668660244 pounds, this CPU cooler is a reliable choice for keeping your computer running smoothly.