Features: 100% brand new and high quality 13-blade design offers a higher airflow and quiet cooling solution for the best performance. PWM capabilities built-in to precisely control the speed to achieve optimized fan curve. Rigid frame design and included rubber dampeners helps to prevent vibration. Low-noise operation without sacrificing performance. The hydraulic bearing design,it has a large oil storage space and an oil seal cover, which can reduce lubricating oil over flow, while reducing friction and noise. Package Includes: 1 X CPU cooler Specifications: Material: ABS Colour: Black Fan speed: 800-1600RPM 10% Rated voltage: DC 12V Rated current: 0.15A 10% Air Volume: 58.4CFM Bearing form: HB hydraulic bearing Noise range: 30dB (A) Connection interface: small 4-pin power supply Fan size: approx. 120X120X25mm / 4.72X4.72X0.98in Application: PWM temperature control is suitable for water cooling fan and chassis fan note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you