Features: brand new and high quality Enhanced border,the frame design has four stiffeners to strengthen the structure, which can effecticely protect the fan from deformation. Fan speed: 900-2300RPM ( 10%), Air Volume: 15-36CFM, Noise: 20-30.5dBA, Input voltage: for DC 12V, Fan nterface: 4Pin. Hydraulic bearing with closed design has large oil storage space, and the loop oil supply circut is design. Shock absortpion rubber working noiselessly,the four cornors are equipped with damping pads to effectively reduce the resonance noise of fan and chassis. Streamer effect, automatic color change,9cm color soft light fan. Specifications: Type: Color/ RGB/ ARGB(optional) Fan speed: 900-2300RPM ( 10%) Air Volume: 15-36CFM Noise: 20-30.5dBA Power Voltage: for DC 12V Current: 0.16A(Color Type), 0.08A(RGB/ ARGB Type) Input Power: 1.92W(Color Type), 0.96W(RGB/ ARGB Type) Static Pressure: 2.35mmH20 Bearing Type: Hydraulic Bearing Connector: PWM 4Pin Size: approx. 92x92x25mm/3.62x3.62x0.98in Note: Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size. Package includes: 1x CPU Cooler