The average noise is high for the standards of this category.
Fan Noise & Speed Maps @ 28-32 °C
[115V] The unit’s noise map looks weird. To stop the fan, the semi-passive mode needs less than 65W on the minor rails and lower than 380W at 12V. High loads on the minor rails heavily affect the fan’s speed, showing that the DC-DC converters require better cooling. With more than 630W, the noise goes over 30 dBA; with more than 1000W, you enter the high-noise output region. The fan speed profile needs tuning.