Impressively high cooling performance for all consumer CPUs State-of-the-art PWM pump with 6-pole motor reduces vibrations to an absolute minimum 2 Pure Wings 3 140mm PWM high-speed fan offer high static pressure with very quiet operation Daisy-chained PWM fans for maximum convenience Flexible sleeved tubes and a simple mounting ensure easy handling Easy-to-access refill port for convenient handling Neat design language with elegant looks and subtle details 3-year manufacturer's warranty Product conception, design and quality control in Germany