Feature: 1. Low Noise Operation: The case fan absorbs high speed vibrations and produces a maximum noise level of only 24.9dBA, equivalent to the sound of falling leaves, ensuring an undisturbed work or gaming environment. 2. Efficient Dual Ball Bearing: The cooling fan features highly reliable dual ball bearings, capable of withstanding high temperatures and providing a lifespan of over 40,000 hours, perfect for 24h continuous use. 3. PWM Intelligent Temperature Control: Equipped with a 4 pin PWM interface, the computer case fan can adjust its speed according to the operating environment, reaching speeds of up to 3000rpm while reducing noise levels. 4. 7 Blade Design: With 7 high pressure fan blades, the case fan delivers a maximum airflow of 12.7CFM at 3000PRM, focusing on enhancing performance by offering stable wind pressure and strong airflow. 5. Easy Installation: The cooling fan is compatible with all types of computer cases and features a user friendly power interface design, making it easy to install. With 50mm screw hole spacing. (Hole spacing is the distance between the centers of the two screw holes.) Specification: Item Type: Case Fan Material: PBT Color: Black Fan Size: Approx. 60x60x15mm/2.36x2.36x0.59in Bearing Type: Dual Ball Rated Voltage: 12V Rated Current: 0.03A±10% Rated Speed: 3000RPM±10% Airflow: 12.7CFM±10% Noise Level: 24.9dBA±10% Interface: 4 Pin PWM. Package List: 1 x Case Fan 4 x Screws