An ultra quiet UL-certified fan system designed for cooling cabinets that requires minimal noise. Features an on board processor that provides a digital read-out of the cabinets temperatures. Programming includes thermostat control, fan speed control, and SMART energy saving mode. Dimensions: 6.3 x 6.3 x 1.3 in. Airflow: 52 CFM Noise: 18 dBA Bearings: Dual Ball