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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 size140 mm
  • Fan depth25
  • Bearing designHydro Dynamic Bearings
  • Rotational speed800 to 2400
  • Airflow rate91.15
  • Air pressure rating2.63

Color Black

Model Squama 2503R 140x25mm Reverse

Model 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.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 90% of the 8,339 comparable items (median $19.99).
Fan size 140 mm
Higher than about 80% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Product colorBlack
Performance
Rotational speed800 to 2400
Airflow rate91.15
Air pressure rating2.63
Power
Power input connectorPWM 4Pin
Size & build
Fan size140 mm
Fan depth25
Bearing designHydro Dynamic Bearings
Product dimensions140 mm
Environment & compliance
Operating noise34
More details
LED lightingAddressable RGB

Other versions of this model

5 more in the same range

Questions about this item

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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