German Engineering - German Design - German Quality - German Performance The white colored Shadow Wings 2 120mm offers whisper-quiet operation and reliable cooling at low revolutions per minute. Key features include: Low-noise operation of up to 15.7dB(A) even at its maximum speed of 1,100 rpm Airflow-optimized fan blades, resulting in a whisper-quiet operation yet solid cooling Anti-vibration mounting system that prevents transmission of vibrations to your PC case Rubberized fan frame minimizes vibrations High-grade rifle-bearing technology that contributes to an operating lifetime of 80,000 hours Secure and easy installation of the fan with push-pins Product conception, design and quality control in Germany 3-year manufacturers warranty Shadow Wings 2 fans are the perfect choice for all who appreciate maximum silence for their PC case.