Geometric Future Squama 2503R 140mm White 3-Pack case fan

Three-pack 140 mm reverse-blade ARGB fans

This set contains three 140 mm case fans with reversed blades so the front face works as an intake. Each unit uses hydro dynamic bearings and a 4-pin PWM connector for speed control between 800 and 2400 rpm. Addressable RGB lighting runs on a 5 V 3-pin header and features a dual light loop for synchronised effects. The white frames include Squama particle patterning to smooth airflow.

PWM range and static-pressure ceiling

The 4-pin PWM interface limits automatic speed control to the 800–2400 rpm window; the fan will not spin slower or faster than this range under motherboard command. Maximum static pressure reaches 2.63 mm H₂O, which caps the fan’s ability to push air through dense radiator fins or restrictive filters. At full speed the noise level hits 34 dB(A), so silent builds may need to run below the top of the curve. Airflow peaks at 91.15 CFM, defining the upper bound for case turnover.

25 mm frame thickness

The 25 mm frame depth decides whether the fans fit in slim radiator mounts, tight side-panel clearances or compact chassis brackets. Buyers with thinner mounting slots cannot use this three-pack.