The Sunon ME40100V1-000U-G99 is a 40mm x 10mm axial AC cooling fan designed for industrial applications requiring reliable cooling. It features a dielectric strength of AC 2500V and operates at a fixed 100V/1A rating. The fan has a noise level of 39.5 dBA, airflow of 7.9 CFM, and a speed of 4000 RPM. It also includes dual multi-mountable fan guards to ensure the safety of the operator while operating the fan. The ME40100V1-000U-G99 is RoHS compliant and UL approved.