Fans are core components for heat dissipation and temperature control in IT communication equipment. Servers, switches, base station equipment, optical communication chassis, and industrial control hosts continuously generate a large amount of heat during operation. Small axial or centrifugal fans create forced airflow to quickly remove accumulated heat from the equipment, preventing chips and circuit boards from experiencing frequency reduction, system crashes, or even burnout due to high temperatures. Simultaneously, the fans circulate air within the enclosure, dispersing moisture and dust, and slowing down component aging. Ultra-thin, silent fans adapted for communication equipment support intelligent temperature control and speed adjustment, are low-power, and highly shock-resistant, meeting the year-round uninterrupted operation needs of data centers and outdoor 5G base stations, ensuring the stable and long-term operation of the entire IT communication system.