COUGAR Apolar 120 ARGB Modular Case Fan 120mm 28mm HDB 600-2200 RPM 75.38 CFM 2.59 mmH2O 37.1 dB(A) Black

Modular 120 mm ARGB case fan

The COUGAR Apolar 120 ARGB is a single 120 mm case fan with a 28 mm thick frame and addressable RGB lighting. It uses a hydrodynamic bearing and a 4‑pin PWM connector for automatic speed control between 600 and 2200 RPM. A tool‑free plug‑in system lets builders daisy‑chain multiple units in any orientation with minimal assembly effort. The fan ships with anti‑vibration rubber pads and a screw set for standard mounting.

Sustained-load airflow and acoustics

At maximum speed the fan delivers 75.38 CFM of airflow and 2.59 mm H2O of static pressure while producing 37.1 dB(A) of noise. The hydrodynamic bearing is designed to maintain consistent rotational stability and low friction during prolonged operation. PWM control continuously adjusts RPM to match thermal demand, preventing unnecessary high‑speed running. The enclosed blade geometry and optimised air ducts reduce flow separation, helping the fan sustain its rated performance without excessive turbulence.

PWM and ARGB interface limits

Speed regulation relies on a standard 4‑pin PWM header, so the motherboard or fan controller determines the minimum duty cycle and the maximum voltage supplied to the motor. Addressable RGB lighting requires a 3‑pin 5 V ARGB header; the fan will not illuminate on a 12 V RGB connector. The quick‑release daisy‑chain connectors carry both power and signal, but the total current draw of all linked fans must stay within the header’s rated limit. No proprietary protocol or software is needed for basic operation.