- This CORSAIR 140 mm fan expansion is perfect for high-end setups, thanks to its 2000 rpm speed - It's PWM controlled so it'll adjust the speed based on the temperature of your hardware - AirGuide technology creates a concentrated airflow that's easy to direct at the hottest components - The super-quiet magnetic dome bearing ­keeps the friction and noise to a minimum- The included iCUE LINK cable lets you connect multiple fans together