230V AC Cooltron High Speed Fan * Case Size: 92 x 92 x 25 mm ( 3.6 x 3.6 x 1 in ) * Airflow: 34 CFM | Noise: 35 dBA | Speed: 2900 RPM | Power: 9 W | Bearings: Dual Ball * High Airflow: This model is designed to maximize airflow and can be too loud for some applications. * An 115V version and several larger models are available, links can be found in the product description.