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Small black 40mm square CPU fan with three-wire connector

OEM Industries

OEM Industries MF40H-12A 40mm CPU cooler

SKU CH-P7DX-0XWS4

A 40 mm ball-bearing fan runs at 12 V drawing 0.06 A with a three-wire connection

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • LEDNo
  • 40 mm fan fits compact CPU sockets
  • Ball bearing reduces friction for longer life
  • 12 V .06 A draws minimal power
  • Three-wire connector enables speed monitoring
  • Black finish suits stealth builds

Compact 40 mm fan for tight builds

The OEM Industries MF40H-12A is a 40 mm square DC cooler designed for small-form-factor systems and embedded boards where space is at a premium. It draws 0.06 A at 12 V and connects with a three-wire lead for speed monitoring. Builders who need a low-profile airflow solution for cramped chassis or industrial enclosures will find the dimensions a direct fit.

Fits 40 mm mounts with three-wire control

The cooler installs into any standard 40 mm fan mounting pattern and requires a 12 V DC header capable of supplying 0.06 A. The three-wire connector provides a tachometer signal so the motherboard or fan controller can report RPM, freeing a four-pin header for PWM devices elsewhere. No LED lighting or additional cabling is included, keeping the wiring clean in dense layouts.

Ball-bearing motor sustains steady airflow

A ball-bearing design reduces wear during continuous operation, allowing the fan to maintain consistent rotational speed over long duty cycles. The 12 V 0.06 A rating indicates a modest current draw that remains stable under sustained load, avoiding the current spikes sometimes seen during start-up. This makes the unit suitable for always-on appliances and servers where airflow must remain predictable.

Points forts

  • 40 mm fan fits compact CPU sockets
  • Ball bearing reduces friction for longer life
  • 12 V .06 A draws minimal power
  • Three-wire connector enables speed monitoring
  • Black finish suits stealth builds

Caractéristiques

ModelMF40H-12A
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
LEDNo

Questions sur cet article

What is the first thermal limit reached when the MF40H-12A runs at full 12 V load for hours?

The 40 mm ball-bearing fan moves air at its rated 12 V 0.06 A; sustained heat dissipation is capped by that airflow and the small 4010 frame.

How much noise and heat does the 40 mm ball-bearing fan produce during all-day operation?

At 12 V the fan draws only 0.06 A, so acoustic output and waste heat stay low, but the 4010 size limits total cooling capacity.

Which connector must the motherboard or controller already provide for the MF40H-12A to work?

A standard three-pin 12 V fan header is required; the cooler ships as a fan-only unit with no mounting hardware included.

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