Feature:1. Silent Cooling Fan: Features ball bearing design to absorb vibrations at high speed, ensuring noise is as low as 43.6dBA, like the sound of falling leaves. Suitable for work or gaming without noise disturbances2. Double Ball Bearings: Equipped with double ball bearings, this cooling fan resists to high temperatures and designed for 24 hour continuous working, offering a bearing lifespan exceeding 50000 hours3. 3 Gears Adjustment: Comes with a remote control that allows for 3 adjustable modes, silent, balanced, and performance, enabling you to tailor fan speed according to your environment, with wind speeds reaching up to 3000RPM for reduced noise4. 7 Leaves Design: Boasts seven high pressure fan leaves capable of delivering an airflow of 109.05CFM at 3000RPM. This PC case fan focuses on enhanced performance, providing stable air pressure and powerful air volume5. Easy Installation: Compatibility with all types of PC cases and simple installation. The fan features a user friendly power interface for easy setup. With 105mm screw hole spacing and 148mm diagonal hole spacingSpecification:Item Type: Cooling FanMaterial: LCPColor: BlackRemote Controller Battery: 160mAh CR2025 Battery (Built in)Fan Size: Approx. 120 x 120 x 30mm or 4.7 x 4.7 x 1.2inBearing Type: Double Ball BearingsRated Voltage: 12VRated Current: 0.33A0.02 percent Rated Speed: 3000RPM10 percent Airflow: 109.05CFMNoise: 43.6dBAInterface: 4PIN PWMScrew Hole Spacing: Approx. 105mm or 4.1inDiagonal Hole Spacing: Approx. 148mm or 5.8in.Package List:1 x Cooling Fan4 x Long Screws4 x Short Screws1 x 4PIN Extension Cable1 x Remote Controller