Use this Corsair Air Series AF140 140mm Blue LED Fan to cool the look and temp of your PC. Install one or more of this Air Series 140mm Blue LED Fan to let your hardware thrive in high airflow and lower temperatures. Featuring a sleeve-bearing and custom molded blades, this AF140 cooling fan is designed to stay quieter than the average fan. AF140 Quiet Edition Single Pk. Air Series AF140 LED Blue Quiet Edition. Corsair Air Series LED high airflow PC case fans combine efficient, low-noise airflow with striking LED lighting. The blades are custom-molded for optimal airflow, and they?re ultra-thin for less noise and turbulence. The sleeved bearing system reduces vibration for quiet operation.