New Thermaltake Smart Case Fan made in Taiwan (model # A1214). This 80mm x 25mm server grade long life fan comes with 2 ball bearings. It has a built in thermal sensor so its speed is controlled by ambient temperature. At 25 Celsius it spins at 2,900 RPM delivering 46 CFM of airflow but once the ambient temperature reaches 35 Celsius it speeds up to 5,000 RPM delivering 53 CFM of airflow. SPECS: Bearing Type : Dual Ball MPN : A1214 Country/Region of Manufacture : China Model : A1214 Fan Diameter : 80 mm Brand : Thermaltake Maximum Fan Speed : 5,000 RPM Power Connection : 3-Pin Type : Cooling Fan Voltage : 12V Maximum Airflow Volume : 53 CFM UPC : Does not apply الحالة جديد