3 x ARCTIC F12 PWM PST 120mm 12cm Black PC Case Fans 1350RPM 53CFM 4-Pin
Air Flow: 53CFM (90.1 m3/h). If you want to improve the cooling efficiency of your computer you get several case fans working in parallel (since it takes 10 fans to double the noise level). But what does it help if they don't work together.