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Small black square 40mm fan with two wires and 2-pin connector

OEM Industries

OEM Industries EC4020SH12EA 40*20mm 12V .14A 2 Pin Fan

SKU CH-W7ET-B8WT8

Compact 40 mm square fan with ball bearing runs on 12 V at 0.14 A for case, router or switch cooling

  • ColorBlack
  • TypeFan only
  • Bearing TypeBall
  • Power Connector2 Pin
  • LEDNo
  • Compact 40 × 20 mm footprint fits tight chassis
  • Ball bearing ensures long, quiet operation
  • 12 V .14 A draw keeps power use low
  • Two-pin connector simplifies wiring in routers and switches
  • Black frame blends into any build

Compact 40 mm square fan for tight spaces

The OEM Industries EC4020SH12EA is a 40 by 20 mm cooling fan built for small-form-factor systems, embedded appliances and network gear. It runs on 12 V at 0.14 A through a simple two-pin connector. Ball-bearing construction and a black frame suit continuous operation in routers, switches and industrial enclosures.

Replaces noisy or failed 4020 stock fans

Swap out an original 4020 unit when bearing whine appears or airflow drops below what the chassis needs. The two-pin wiring matches legacy headers on many router and switch boards, so no adapter is required. The upgrade is worth it when the original sleeve-bearing fan has seized or when a ball-bearing replacement extends service intervals in always-on equipment.

Limited to fixed-speed two-pin control

With only power and ground wires the fan spins at a constant rate whenever voltage is applied. There is no PWM signal or tachometer feedback for motherboard monitoring or speed curves. Builders who need variable speed, soft-start or RPM reporting must choose a three- or four-pin model instead.

Pontos fortes

  • Compact 40 × 20 mm footprint fits tight chassis
  • Ball bearing ensures long, quiet operation
  • 12 V .14 A draw keeps power use low
  • Two-pin connector simplifies wiring in routers and switches
  • Black frame blends into any build

Especificações

ModelEC4020SH12EA
ColorBlack
TypeFan only
Bearing TypeBall
Power Connector2 Pin
LEDNo

Perguntas sobre este artigo

What are the exact dimensions of the EC4020SH12EA fan for mounting clearance?

The fan measures 40 mm by 40 mm square with a 20 mm thickness, so verify your case or device has at least that much space.

How do I connect the 2-pin power connector correctly on the first try?

Align the keyed 2-pin plug with the motherboard or controller header; the connector only fits one way, so do not force it reversed.

When should I expect to replace the ball-bearing fan?

Ball bearings typically last several years of continuous use; replace the unit once noise increases or rotation becomes uneven.

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