The rack-mounted air-cooled load is a forced air-cooled testing device compatible with standard 19-inch cabinets. It is characterized by cabinet integration, forced air-cooled heat dissipation, stepless adjustable power and precise testing. Specially designed for load testing and aging verification of UPS, inverters, switching power supplies and small generator sets in data centers, communication rooms and laboratories, it is suitable for indoor standardized deployment scenarios. With a standard rack design for seamless cabinet integration, its size ranges from 2U to 6U, compatible with 19-inch server cabinets, enabling quick deployment.