115V AC Cooltron High Speed Fan * Case Size: 172 x 150 x 51 mm ( 6.8 x 6 x 2 in ) * Airflow: 183 CFM | Noise: 54 dBA | Speed: 3000 RPM | Power: 41 W | Bearings: Dual Ball * High Airflow: This model is designed to maximize airflow and can be too loud for some applications. * A higher speed model with a capacitor is also available for a higher airflow, links can be found in the product description.