By Bestbuy.com

Corsair - RS120 120mm PWM Computer Case Fan Expansion Fan - Black

Add a CORSAIR RS120 120mm PWM Fan to your cooling setup – daisy-chained 4-pin PWM connectors let you link to your other RS fans and control them all through just a single 4-pin PWM header on your motherboard. Enjoy fan speeds up to 2,100 RPM, with the static pressure to also serve as radiator fans. CORSAIR AirGuide technology with anti-vortex vanes directs airflow for concentrated, powerful cooling. Magnetic Dome bearings ensure quieter operation and increased longevity, while Zero RPM mode offers silent operation at low loads.