The TwoCool 140mm Cooling Fan from Antec features a speed-control switch that allows you to choose either silent 800 rpm or maximum 1200 rpm cooling. Sleeve bearings ensure quiet operation. The low noise and optimal cooling capability of TwoCool 140 provides better airflow even at low speeds than comparable 120 mm fans.
Speed control switch
3-pin/4-pin power connector for convenient connections to the motherboard or power supply