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Black 90 mm square case fan, 38 mm thick, three-pin connector, no LED

BGears

BGears b-Blaster 90x38 90 mm 38 mm 4500 RPM 108 CFM 3-pin case fan

SKU CH-KG4N-2PVM4 MPN b-Blaster 90x38

Thick 90 mm case fan spins at 4500 RPM, pushing 108 CFM through cases or CPU coolers via a 3-pin connector

  • Fan Counts1 Fan
  • Fan ControllerNo Controller
  • TypeCase Fan
  • CompatibilityCase, CPU
  • Fan Size90mm
  • Fan Thickness38mm
  • Extended life with 2 ball bearing design
  • High airflow of 108 CFM at 4500 RPM
  • Fits cases and CPU coolers with 90 mm size
  • Speed monitoring via 3 pin connector signal
  • Ready to install with four included screws

90 mm 38 mm high-speed case fan

The BGears b-Blaster 90x38 is a 90 mm square, 38 mm thick case fan built for extreme airflow. It spins at 4500 RPM and delivers 108 CFM through a dual ball-bearing motor. The 3-pin connector supplies 12 VDC power and a speed signal. Mounting screws are included.

Suits compact cases and CPU heatsinks needing

Builders who prioritise raw cooling capacity over quiet operation will benefit from the high static pressure. The 45 dBA noise level makes it unsuitable for silent or noise-sensitive builds. Systems without 3-pin headers or with strict acoustic targets should look elsewhere.

108 CFM at 4500 RPM with 38 mm depth

This airflow rating handles dense heatsink fins and restricted chassis vents comfortably. The 38 mm thickness provides extra motor torque for sustained high speed. Headroom diminishes when the fan is voltage-reduced for quietness, as both flow and pressure drop sharply below rated RPM.

Points forts

  • Extended life with 2 ball bearing design
  • High airflow of 108 CFM at 4500 RPM
  • Fits cases and CPU coolers with 90 mm size
  • Speed monitoring via 3 pin connector signal
  • Ready to install with four included screws

Caractéristiques

BrandBgears
SeriesBlaster Series
Modelb-Blaster 90x38
Fan Counts1 Fan
Fan ControllerNo Controller
TypeCase Fan
CompatibilityCase, CPU
Fan Size90mm
Fan Thickness38mm
Bearing Type2 Ball
RPM4500 RPM
Air Flow108 CFM
Noise Level45 dbA
Power Connector3 Pin
ColorBlack
LEDNon-LED
FeaturesExtreme Airflow
Dimensions90.00 x 90.00 x 38.00 mm
Package ContentsFan and 4 screws
Poids d’expédition0.16 kg
Dimensions du colis179 × 132 × 47 mm

Questions sur cet article

Does my case have a 90 mm mounting pattern to fit this 90.00 x 90.00 mm frame?

The fan measures 90.00 x 90.00 x 38.00 mm, so your case or heatsink must provide four mounting holes on a 90 mm square with enough depth for the 38 mm thickness.

Will the 3-pin connector let my older motherboard header report the 4500 RPM speed signal?

Yes, the 3-pin lead includes a tachometer wire so a compatible 3-pin header can read the 4500 RPM signal, though voltage control — not PWM — will set the actual speed.

After installation, how can I confirm the fan is delivering the rated 108 CFM airflow?

With the fan running at full 12 V you should hear a noticeable 45 dBA rush of air; checking the BIOS or monitoring software for a steady 4500 RPM reading confirms the motor is spinning at spec.

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