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CORSAIR AIRFLOW PERFORMANCE EDITION SERIES

You can see that the overall CFM is pretty close, however where they differ is static pressure, RPM, and the noise level.

CORSAIR AIRFLOW PERFORMANCE EDITION SERIES

Now that you know what the terms mean, here is how our Air Series AF120 Performance Edition is rated, compared with our SP120 Performance Edition: For example our AF120 Performance Edition fan has max power draw of. To convert this figure to maximum wattage, you will want to multiply it by the maximum voltage the fan supports. Power Draw - Measured in Amps (A), tells you how much power the fan will use.The higher the RPM the faster the fan is spinning, and in most cases, the louder the fan is going to be. RPM - Revolutions Per Minute tells us how many times the fan will make a complete rotation in one minute.Static pressure is most important when you are mounting your fan to something that will block some of its airflow, such as a water cooling radiator, CPU heat sink, or an HDD cage where the fan will be obstructed by the HDDs. The higher this number is, the more force the fan can exert on an object. mmH20 - This is a measurement of static pressure.For a typical case fan, this is the most telling spec when it comes to the fans cooling performance. CFM - Cubic Feet / Minute tells us how much air the fan is capable of moving.

dBA (Decibel Level) - This is a unit of measurement for loudness, the lower the number the more quiet the fans will be.

Fan size is closely related to airflow, so that typically larger fans spin more slowly while still being able to push more air than a smaller fan that spins at the same RPM.

Fan Size - The fan size is usually measured in millimeters or centimeters, and the most common fan sizes used in modern systems are 120mm and 140mm, with some cases accepting 200mm or larger fans.

Let’s start with a quick explanation of the terminology which is used when describing the characteristics of fans:

In this blog I will define the terms that are traditionally used to describe the characteristics of fans, and talk about the difference between "airflow" and "static pressure." I will also show you how we test the fans and how we were able to accurately determine the specifications for each fan. We recently released a new lineup of Air Series case fans, which come in both AirFlow (AF) and Static Pressure (SP) versions.