One of the most important features of any case fan is the amount of airflow it can generate. CFM is a measure of how much air flows through an opening. It is measured in cubic feet per hour (CFM). CFM ratings higher than 1 mean that more airflow is generated, which reduces temperatures and improves performance.
The best case fans have a high airflow level and are extremely quiet. You will need to consider your budget, type of airflow and noise levels in order to determine which model is best for you.
The Noctua NF-14PWM140mm case fan is a fantastic choice if your goal is to achieve the maximum airflow. It comes with a PWM connector and a 3-year warranty. In addition, it has swappable colored corner panels, making it one of the most customizable options on the market.
The ARCTIC F12PWM Rev.2 is another high-performance case fan worth your consideration. The ARCTIC fan can produce 53 FCM air flow, a significant amount of airflow. Despite its high airflow, however, the ARCTIC F12 fan can be quite loud. The PWM function can be disabled, so the fan can run at a lower RPM.
Despite its superior performance, the ARCTIC F12 produces a much lower level of noise than most other comparable products. With a noise level of just under 36 dBA, it can be set to operate at a slow speed, which helps minimize its effect on your system's performance. Your motherboard can control the speed of fan operation because it has a PWM feature.
Silent Wings 3 is another fan which produces significant airflow and has a price that is reasonable. Although it has a 6-pole motor, it can provide over 100 square inches of airflow, which is more than what you'd expect from a smaller fan. That said, the case fan does not produce nearly as much noise as the ARCTIC fan.
The Silent Wings 3 has impressive airflow capabilities. It also features well-designed features. This includes a concentrated flow frame which concentrates airflow and reduces noise. It also has eleven stator guide vanes, a six-pole motor and a power lead.
Rosewill 120 mm long-life sleeves are the last. This fan produces the most airflow out of all the top case fans. It circulates more air and cools your PC quicker than the rest. The Rosewill 120mm Long Life Sleeve is small in size but has a maximum RPM 2000. But the RGB lighting is what fans love most. This is not a feature you should have, but it's an awesome feature.
Whatever model you choose you'll need screws and a power supply. While most models have these included, some models will need you to either connect jumpers or use an additional fan controller.