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Small black 40 mm square fan with four-pin connector

OEM Industries

OEM Industries MGT4012UB-W28 40 mm 4-pin fan

SKU CH-Y101-584DK

A 40 mm ball-bearing fan with a 4-pin PWM connector for case or cabinet cooling

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • Power Connector4 Pin
  • LEDNo
  • 40 mm compact size fits tight case spaces
  • Ball bearing design supports long running life
  • 4-pin PWM connector enables precise speed control
  • 12 V 0.55 A rating keeps power draw low
  • Black frame blends with most build aesthetics

40 mm 4-pin cooling fan

The OEM Industries MGT4012UB-W28 is a 40 mm fan designed for case or cabinet cooling. It suits builders who need a compact airflow solution for tight spaces or small-form-factor systems.

Ball-bearing build with 4-pin PWM control

A ball bearing supports durable rotation while the 4-pin connector enables pulse-width-modulation speed control. The black frame blends into dark chassis interiors and the 12 V 0.55 A rating fits standard motherboard headers.

Fan-only package with no lighting

No LEDs are included, keeping the unit suitable for stealth builds or professional environments. The package contains only the fan itself, so mounting screws or adapters must be sourced separately. Buyers who want RGB illumination or bundled mounting hardware should look elsewhere.

Points forts

  • 40 mm compact size fits tight case spaces
  • Ball bearing design supports long running life
  • 4-pin PWM connector enables precise speed control
  • 12 V 0.55 A rating keeps power draw low
  • Black frame blends with most build aesthetics

Caractéristiques

ModelMGT4012UB-W28
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
Power Connector4 Pin
LEDNo

Questions sur cet article

How does the 4-pin connector control fan speed on this 12 V model?

The 4-pin PWM connector lets the motherboard vary the 12 V supply to the 0.55 A motor, so speed scales with temperature without voltage drops.

Will the 40 mm frame fit a standard 40 mm mounting pattern?

Yes, the 40 mm square frame matches the common 40 mm hole spacing used on many small-form-factor cases and heatsinks.

What is the correct orientation when installing the ball-bearing fan?

Mount it so the label side faces the airflow direction you want; reversing it pulls air the wrong way and is the most common mistake.

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