FAN AXIAL 40MM X 40MM X 28MM 24VDC 220mA; Supply Voltage:24V; Current Type:DC; Fan Frame Size:40mm; External Depth:28mm; Noise Rating:53dBA; Flow Rate - Imperial:21.5cu.ft/min; Flow Rate - Metric:0.61m /min; Bearing Type:Ball ;RoHS Compliant: Yes