Protechnic 120mm x 38mm 12V Fan with high airflow 150+ CFM and low noise 53 dBA compared with others Dual Ball Bearing Protechnic MGT12012UB-O38, 120x120x38 MM 12VDC, 2.2AMP, 26.4W 3300 RPM with 159.14CFM 52.8 dBA Speed Sensor (Tachometer Output) 3-Pin Connector with 18-Inch Wire