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Black 120mm square case fan with hydraulic bearing and PWM connector

BGears

BGears b-PWM Vortex 120 RGB case fan

SKU CH-KM49-3ABDD MPN b-PWM Vortex 120 RGB

120 mm case fan with hydraulic bearing, 600 to 1800 RPM, 10 to 101 CFM airflow and 28 dBA noise

  • Fan Counts1 Fan
  • TypeCase Fan
  • CompatibilityCase
  • Fan Size120mm
  • Fan Thickness25mm
  • Bearing TypeHydraulic Bearing
  • Quiet operation at 28 dBA noise level
  • Wide speed range from 600 to 1800 RPM
  • Strong airflow up to 101 CFM for cooling
  • Hydraulic bearing ensures long-lasting reliability
  • PWM control via 4-pin connector for precise speed adjustment

120 mm PWM case fan

The BGears b-PWM Vortex 120 RGB is a single 120 mm case fan with a 25 mm frame and hydraulic bearing. It connects via a standard mini 4-pin PWM header for automatic speed control. The black frame carries no LED lighting, keeping the look understated for any build.

Suits quiet-focused builds; not for RGB lighting

Builders who want low noise will appreciate the 28 dBA maximum rating and a speed range of 600 to 1800 RPM. The hydraulic bearing supports long-term reliability at modest cost. Buyers who want addressable RGB illumination or a multi-fan kit should look elsewhere.

Fits standard 120 mm mounts

The fan slots into any 120 mm case opening and draws power from a motherboard PWM header. At full speed it delivers up to 101 CFM airflow and 13 mmH2O static pressure, clearing heat from dense fin stacks. The slim 25 mm profile leaves clearance for radiators or cable routing behind the fan.

Highlights

  • Quiet operation at 28 dBA noise level
  • Wide speed range from 600 to 1800 RPM
  • Strong airflow up to 101 CFM for cooling
  • Hydraulic bearing ensures long-lasting reliability
  • PWM control via 4-pin connector for precise speed adjustment

Specifications

BrandBgears
Modelb-PWM Vortex 120 RGB
Fan Counts1 Fan
TypeCase Fan
CompatibilityCase
Fan Size120mm
Fan Thickness25mm
Bearing TypeHydraulic Bearing
RPM600 to 1800RPM +/- 10%
Air Flow10 to 101 CFM
Air Pressure2.5 to 13 mmH20
Noise Level28 dBA
Power ConnectorMini 4 pin PWM
ColorBlack
LEDNon-LED
Dimensions120 x 120 x 25 mm
Shipping weight0.20 kg
Package size150 × 150 × 60 mm

Questions about this item

Does my motherboard need a 4-pin PWM header to run the b-PWM Vortex 120 RGB?

Yes, the fan uses a mini 4-pin PWM connector so a 4-pin header is required for speed control.

Will the 120 mm frame and 25 mm thickness fit in the same mounting points as my existing 120 mm fans?

The fan measures 120 x 120 x 25 mm, matching the standard 120 mm mounting pattern used by most cases and radiators.

How can I confirm the fan is spinning within its 600 to 1800 RPM range after installation?

Monitor the RPM reading in BIOS or fan-control software; it should stay between 600 and 1800 RPM with a tolerance of ±10 %.

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