Fractal PRISM AL-18 RGB PWM Fan 2 pack 180mm

Fractal PRISM AL-18 RGB PWM is a set of two large 180 mm case fans aimed at more serious airflow builds and quiet systems. With dimensions of 180 x 180 x 38 mm and PWM control in the range of 300 – 1200 RPM, you have quite a bit of flexibility between complete silence and serious airflow. Addressable RGB lighting with 3 pin ADD-RGB 5V gives you fine control over effects through a compatible controller or motherboard. The black color and 7 blades are a classic choice for a clean, unpretentious, yet visually complete build.

What you get

The large format of 180 mm means you can move more air at lower RPMs, which directly helps achieve lower noise levels while maintaining the same cooling compared to smaller fans. The airflow range of 43.1 to 146.8 CFM and static pressure of up to 2.50 mmH2O allow you to use them for both general intake/exhaust as well as behind filters or in front of radiators and dense mesh panels. The noise level between 14.9 and 37.4 dB(A) provides a good balance – quiet at idle at 300 RPM, stable cooling under load at higher speeds. The LLS bearing is oriented towards longer life and less vibration, and the PWM 4 PIN connector facilitates precise control through the motherboard. You get 2 pieces in the package, enough to form a primary front intake or a combination intake + exhaust in a larger case.

• Large format of 180 mm, suitable for spacious cases with the option for lower RPMs at the same airflow.
• RPM range of 300 – 1200 RPM, allowing a quiet mode for everyday use and more aggressive cooling under load.
• Airflow 43.1 – 146.8 CFM, sufficient for effective airflow in powerful gaming and workstation configurations.
• Maximum static pressure up to 2.50 mmH2O, which helps when mounting behind dust filters or dense mesh panels.
• Low noise level 14.9 – 37.4 dB(A), so the system remains calm even when the fans are not at minimum RPM.
• LLS bearing for better durability and smoother operation compared to basic sleeve bearings.
• Addressable RGB lighting with 3 pin ADD-RGB 5V and black housing for easy integration into RGB or simpler builds.

Who it is suitable for

This set is suitable if you are building a larger case with a focus on good airflow and controlled noise levels, especially for gaming or long render/work sessions. It fits well in builds where you want both a visual accent with RGB and practical cooling with fewer, but larger fans. It is not suitable if your case does not support 180 mm positions – in that case, it is better to look towards 120/140 mm models.

The most sensible aspect here is the combination of the large 180 mm format, wide RPM range, and high CFM, plus addressable RGB – a flexible set that allows you to easily set up your case to look good and cool effectively.