Features: 1.Unique fan design, provides for more powerful airflow. 2.Silent fan: Ultra low noise makes you more focused on your work, study or games. 3.With Hydraumatic , the fan run stably and silently 4.Power saving design, low power consumption. 5.Easy to install and use. specification: 1.Unique fan design, provides for more powerful airflow. 2.Silent fan: Ultra low noise makes you more focused on your work, study or games. 3.With Hydraumatic, the fan run stably and silently 4.Power saving design, low power consumption. 5.Easy to install and use. s: Type: CPU Fan Advantage: Silent Item Color: Black Rated Voltage: 12VDC Rated Current : 0.25A Fan Speed: 120010%RPM Maximum Air Flow: 40.96CFM Fan Noise Level: 20dBA10% Fan Blade Number: 12 Interface: 2 Pin Item Size: Approx. 120*120*25mm Color: Black Bearing Type: Hydraumatic Package List: 2 x CPU Cooling Fans Note: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.