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Black 140mm case fan with reversed blades, dual ARGB light rings, 4-pin PWM connector

Geometric Future

Geometric Future Squama 2503R Reverse Blade 140mm case fan

SKU CH-2NMQ-WW6ZX

A 140mm reverse-blade case fan with hydro-dynamic bearings, PWM speed control from 800 to 2400 RPM, 91.15 CFM airflow, 2.63 mmH₂O pressure and addressable RGB dual light loops, running up to 34 dB(A)

  • Fan Size140mm
  • Fan Thickness25
  • Bearing TypeHydro Dynamic Bearings
  • RPM800~2400
  • Air Flow91.15
  • Air Pressure2.63

Color Black

Model Squama 2503R 140x25mm Reverse

Option 1 Pack

  • Reverse blade design enables front-facing intake airflow
  • Hydro dynamic bearings deliver quiet operation at 34 dB(A)
  • Squama particle frame reduces turbulence for 91.15 CFM airflow
  • PWM control adjusts speed from 800 to 2400 RPM
  • Dual ARGB light loops sync with 5V motherboard headers

140 mm Reverse-Blade Fan

The Geometric Future Squama 2503R is a 140 mm case fan with reversed blades that present the intake face forward. Hydro dynamic bearings and a 25 mm frame suit builders who want a single fan for chassis airflow or radiator mounting. Addressable RGB lighting runs on a 5 V three-pin header for motherboard synchronisation.

PWM Control and Dual Light Loops

A four-pin PWM connector lets the fan spin between 800 and 2400 rpm, so the same unit can serve as case exhaust, CPU-cooler push or radiator pull without rewiring. The dual light-loop design adds two addressable rings that illuminate the frame and blade hub, freeing the builder from adding separate LED strips for accent lighting.

Sustained Load Behaviour

At maximum speed the fan delivers 91.15 CFM airflow and 2.63 mm H₂O static pressure while the noise level stays at 34 dB(A), meaning radiator or heatsink performance remains steady during long rendering or gaming sessions. The Squama particle frame texture reduces turbulent flow noise, so acoustic output does not rise sharply as heat soak increases.

Pontos fortes

  • Reverse blade design enables front-facing intake airflow
  • Hydro dynamic bearings deliver quiet operation at 34 dB(A)
  • Squama particle frame reduces turbulence for 91.15 CFM airflow
  • PWM control adjusts speed from 800 to 2400 RPM
  • Dual ARGB light loops sync with 5V motherboard headers

Especificações

Fan Size140mm
Fan Thickness25
Bearing TypeHydro Dynamic Bearings
RPM800~2400
Air Flow91.15
Air Pressure2.63
Noise Level34
Power ConnectorPWM 4Pin
ColorBlack
LEDAddressable RGB
Dimensions140mm

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Perguntas sobre este artigo

Will the 2400 RPM ceiling push the noise past 34 dB(A) during long sessions?

The fan tops out at 34 dB(A) even at 2400 RPM, so sustained full-speed runs stay at that level.

How much heat does the motor add to the loop when it runs 24/7?

Power draw is limited to the 4-pin PWM header rating; the hydro dynamic bearing keeps friction low, so added heat is minimal.

Does my motherboard need a 5 V 3-pin ARGB header for the dual light rings to work?

Yes, the addressable RGB loops require a standard 5 V 3-pin header for synchronization and per-LED control.

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