Fangrui Product Details Intelligent Pwm Control: Experience Optimal Thermal Performance With The 120mm Chassis Fan, Featuring Pwm Intelligent Temperature Control. This Advanced System Adjusts The Fan Speed In Response To Cpu Temperature, With A Maximum Speed Of 1800 Rpm. Enhanced Airflow Design: Utilizing 9 Blades, The Fan Maximizes Air Pressure And Volume, Ensuring Efficient Heat Dissipation Crucial For High-performance Computing. Construction: Reinforced With Pbt High-temperature Plastic, The Robust Frame Design Prevents Deformation And Extends The Lifespan Of The Fan. Compatibility: For Computer Cases And Water Radiators, Ensuring Your System Remains Cool And Stable Even Under High Loads. Due To Different Batches, There May Be Differences In Product Appearance And Printed Text, Which Not Affect Use Rated Voltage: Dc 12v Speed: 1800rpm 10 Fan Air Volume: Max 78.08cfm Rated Current: 0.25a Noise: Max32.2db Input Power: 4.2w Fan Pressure: Max2.06mm/h2o Insulation Type: Class A Power Interface: 4pin Colour