AXIAL 2589 - Ø254mm x 89mm, High Speed Fan Kit /w Plug CordDesigned 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. 254 x 89mm ( 10 x 3. 5 in.) 100 to 120V AC