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Small black 40mm square fan with four-pin connector and ball bearing

OEM Industries

OEM Industries DBTB0428B2F 40mm 12V 0.75A 4-pin PWM ball-bearing fan

SKU CH-DW6D-WGK73

40 mm ball-bearing PWM fan delivering 12 V 0.75 A power and 15 to 20 cfm airflow above 7000 rpm

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • Power Connector4 Pin
  • LEDNo
  • 40 mm compact design fits tight chassis spaces
  • Ball-bearing construction extends operational lifespan
  • 4-pin PWM connector enables precise speed control
  • 7000 rpm peak speed delivers 15 to 20 cfm airflow
  • 12 V 0.75 A rating suits standard motherboard headers

Compact 40 mm PWM fan for tight builds

This 40 mm ball-bearing fan runs on 12 V and draws 0.75 A through a standard 4-pin PWM connector. It spins above 7000 rpm to deliver 15 to 20 cfm of airflow. The small frame suits low-profile CPU coolers or cramped chassis where larger fans will not fit.

Check mounting holes and connector clearance

Verify that your cooler or case has 40 mm mounting points with the standard screw pattern. Ensure the 4-pin header on your motherboard or controller can supply 12 V at 0.75 A and supports PWM speed control. Confirm there is enough depth for the 28 mm thick frame and that no cables obstruct the blades.

Replaces noisy sleeve-bearing 40 mm fans

The dual ball bearing extends service life and reduces rattle compared with sleeve-bearing units of the same size. The upgrade is worthwhile when the original fan has become loud, runs unevenly or cannot maintain speed under PWM control. It is not for builds that need higher static pressure or larger airflow volumes.

Punti di forza

  • 40 mm compact design fits tight chassis spaces
  • Ball-bearing construction extends operational lifespan
  • 4-pin PWM connector enables precise speed control
  • 7000 rpm peak speed delivers 15 to 20 cfm airflow
  • 12 V 0.75 A rating suits standard motherboard headers

Caratteristiche tecniche

ModelDBTB0428B2F
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
Power Connector4 Pin
LEDNo

Domande su questo articolo

What is included with the DBTB0428B2F fan and what must be purchased separately?

The package contains the 40 mm 4-pin PWM fan with ball bearing; mounting screws, a fan controller or additional cables are not included and must be sourced separately.

Which version of the DBTB0428B2F should I choose for a 12 V PWM header?

This model is the single 12 V 0.75 A 4-pin PWM variant rated for 15–20 CFM at over 7000 rpm, so no other version or capacity selection is required.

What does the 7000 rpm figure mean once the fan is installed in a case?

At full PWM duty the fan spins above 7000 rpm, delivering 15–20 CFM of airflow through a 40 mm frame for targeted component cooling.

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