Designed for projects that requires cooling or ventilation; or as a replacement fan for various products. Includes a heavy-duty aluminum fan with power plug cord, two fan guards, and mounting screw set. Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. High Speed: This model is designed to maximize airflow and can be too loud for some applications. 200 x 200 x 60 mm (7.87 x 7.87 x 2.36 in.) 100 to 120V AC Airflow: 425 CFM Noise: 65 dBA Speed: 3200 RPM