High-airflow and Super Quiet: has a fast cooling speed,which can lower the temperature by 10-15 degree rapidly.With 4 unique double silicone shock absorber pads for each fan to reduce the noise, pc case fan works silently. High Quality & Long Using Life:With hydraulic bearing design, and made by high quality eco-friendly materials that are certificated by CE & ROSH, 120mm PC case fan is in high quality and has a using life up to 30,000 hours continuous working time. Wide Compatibility: 120mm PC case fan is compatible with all types of chassis and easy to install.