1. 9-blade high performance design. 2. Long-life motor & silent hydraulic bearing. 3. When the water cooler installation space is limited, the thin 15mm fan can be used to replace the original water cooling fan, and equipped with special screws. 4. When playing games, you can set the TURBO mode for efficient heat dissipation. 5. Standby and rest, you can set the silent mode, quiet and comfortable. 6. It is suitable for the construction of air ducts of compact chassis or air-cooled radiators of special specifications. Specification: Rated Voltage: DC 12V Rated Current: 0.18A Input Power: 2.16W Fan Speed: 500-2000RPM +/- 10% Maximum Air Volume: 54.6CFM Maximum Wind Pressure: 1.53mmH2O Noise Range: 13.8-31.2dB(A) Bearing Type: HB Hydraulic Bearing Colour: black Material: plastic Size: 12 x 12 x 1.5cm Package Contents: 1 x PWM PC Case Cooler Fan Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.