The “AXIAL FANs FOR SERVER CABINET” is a heavy duty and powerful fan designed to Increase the air circulation to get more even temperature throughout your incubator. Great for cabinet style egg incubators. This fan is made with durable ball bearings for long life. Mounting holes on each corner make mounting in your incubator very easy. Just wire into your incubator so the fan is ALWAYS on to keep your cabinet incubator temperature uniform.