Brand ARCTIC, Model ACFAN00279A Power Connector Type 4-Pin, Voltage 12 Volts, Wattage 15.6 watts, Cooling Method Air, Compatible Devices Radiator, Material Polycarbonate, Maximum Rotational Speed 10000 RPM, The impeller of the S8038-10K is held in place by two ball bearings, making it not only particularly durable but also less sensitive to external influences such as heat and dust, The S8038-10K has a wide speed range that can be regulated via PWM and voltage. With up to 10000 rpm, it provides an ideal balance between cooling performance and noise,