Corsair Air Series SP120 PWM Performance Edition High Static Pressure 120mm Fan (SET OF TWO). The wide body low-pitch blades of the SP120 fans combined with the custom housing provides outstanding static pressure and airflow through heatsinks or radiators. With rubberized corners a quiet and reliable Advanced Hydraulic Bearing and PWM support for increased fan speed control the SP120 truly is the strong silent type. Included in the box are the three user-replaceable colored rings in red blue and white so you can customize your fan to match your case's components. Each fan also features blacked-out wires and connectors so your build looks elegant and clean when done.