Thermaltake CL-F038-PL12BU-A Riing 12 Blue LED Fan

The Thermaltake Riing 12 CL-F038-PL12BU-A is a 120mm cooling fan that distinguishes itself with a circular LED ring design, producing an even blue glow around the full circumference of the fan rather than relying on LEDs mounted in individual corners. This creates a cleaner, more uniform lighting effect that works well as a visual accent in windowed PC cases. Beyond aesthetics, the fan is built around a hydraulic bearing rated for 40,000 hours of operation at 25°C, offering quiet, stable rotation over a long service life. The anti-vibration mounting system uses rubber dampening at the contact points to prevent the fan from transferring vibrations into the case chassis, which is a common source of unwanted noise in PC builds.

Performance-wise, the Riing 12 spins at 1500 RPM and delivers 40.6 CFM of airflow with 2.01 mm-H2O of static pressure, making it capable of both open-air case ventilation and radiator duty in liquid cooling loops. For users who prioritize noise reduction, the included low-noise cable drops the speed to 1000 RPM and cuts noise to just 18.7 dB-A — nearly inaudible in most environments. The trade-off is reduced airflow, and since the fan uses a 3-pin connector rather than 4-pin PWM, there is no automatic speed modulation between those two fixed points. Builders who want straightforward, good-looking cooling with a quiet option will find the Riing 12 to be a well-executed and affordable solution.