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

OEM Industries

OEM Industries EUB0412MD 40mm Fan Only 12V 0.1A 3 Pin Black

SKU CH-6QMQ-ZJQG7

A 40mm Delta ceramic-bearing fan with a 3-pin 12V 0.1A connector for compact cooling

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeCeramic
  • Power Connector3 Pin
  • LEDNo
  • Compact 40 mm square frame fits tight CPU cooler spaces
  • Ceramic bearing reduces friction for quieter long-term operation
  • 12 V 0.1 A draw keeps power load minimal on motherboard headers
  • Three-pin connector enables basic RPM monitoring by the board
  • Delta-built 4020 unit delivers reliable airflow in a slim 20 mm profile

Compact 40mm Delta cooler

The OEM Industries EUB0412MD is a 40 by 20 millimetre DC fan assembly built around a Delta motor with ceramic bearing. It runs on 12 volts and draws 0.1 amps through a standard three-pin connector. The black frame contains no lighting. This unit suits repair technicians or hobbyists maintaining legacy small-form-factor boards or industrial equipment that demand this exact footprint.

Integration into tight builds

The three-pin header supplies power and tachometer feedback to the motherboard or fan controller without PWM circuitry. At 40 millimetres square and 20 millimetres thick it slips into cramped shrouds where larger coolers cannot reach. The ceramic bearing reduces friction in a minimal envelope, freeing surrounding space for memory modules or voltage-regulator heatsinks. Builders needing variable speed control or addressable lighting should look elsewhere.

Direct replacement for worn 4020 units

This cooler replaces a failed or noisy 4020-size fan in existing heatsinks, rack-mount appliances or embedded chassis where the mounting holes and voltage match. The jump is worth it when the original sleeve-bearing unit has seized or developed rattle and the system cannot accommodate a taller or wider alternative. It does not upgrade thermal capacity beyond the original design envelope.

Highlights

  • Compact 40 mm square frame fits tight CPU cooler spaces
  • Ceramic bearing reduces friction for quieter long-term operation
  • 12 V 0.1 A draw keeps power load minimal on motherboard headers
  • Three-pin connector enables basic RPM monitoring by the board
  • Delta-built 4020 unit delivers reliable airflow in a slim 20 mm profile

Specifications

ModelEUB0412MD
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeCeramic
Power Connector3 Pin
LEDNo

Questions about this item

What is the first limit you hit when the 40 mm Delta EUB0412MD runs continuously?

The ceramic bearing and 0.1 A current rating set the thermal and mechanical ceiling for sustained operation.

How much noise and heat does this 12 V 3-pin fan produce in all-day use?

At 0.1 A draw the motor stays cool and the ceramic bearing keeps acoustic output low during continuous running.

What connector must your motherboard or controller already have for this 3-wire 4020 fan?

A standard 3-pin 12 V header is required; no PWM or proprietary interface is used.

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