Features: The 12V 6A brushless cooling fan delivers powerful 280CFM airflow at 7400RPM with double ball bearing, ensuring efficient heat dissipation for industrial equipment and communication base stations. Featuring pure copper coils and a 4 wire speed control interfaces, this 97x97x33mm centrifugal blower offers enhancing stability, low power consumption, and precise RPM adjustment for optimizes cooling performances. Ideal for networking technicians, electronics engineers, and industrial maintenance teams managing heat sensitive devices like amplifiers, routers, and automated factory machinery. Perfectly suited for cooling communication base stations, control cabinets, elevator ventilation systems, and video equipment requiring reliable thermal management. Builts with maintenance less double ball bearing and plastic housing, this centrifugal fan withstands continuous operation in demanding environments while maintaining consistent airflow pressure. Specifications: Ingredient: Plastic Color: Black Size: Approximately 9.7x9.5x3.3cm Input: DC12V 6A Speed: 7400rpm Air volumes: 280CFM Bearing: Ball bearing Wire length: 33cm Package Includes: 1pcs Centrifugal Fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.