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Small black 40mm square fan with 20mm depth and three-pin connector

OEM Industries

OEM Industries EFB0405VHD 40mm 20mm 5V .5A 3 Pin Ball Bearing Fan

SKU CH-7BE2-KD76B

A 40 mm ball-bearing fan for notebooks, switches and routers, running on 5 V .5 A power

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Bearing TypeBall
  • Power Connector3 Pin
  • LEDNon-LED
  • 40 mm frame fits tight notebook and router chassis
  • ball bearing motor runs quietly at 5 V 0.5 A
  • three-pin connector reports speed to motherboard
  • 20 mm slim profile clears low-profile heatsinks
  • plain black finish blends into any build

Compact 40 mm Cooling Fan

The OEM Industries EFB0405VHD is a 40 mm square fan with a 20 mm thickness designed for tight spaces. It runs on 5 V power and draws .5 A through a standard three‑pin connector. Ball‑bearing construction supports continuous operation in notebooks, switches or routers.

Suitable For

This unit suits repair technicians and integrators who need a direct replacement for a 40*40*20 mm frame. It is not for builds that require a larger frame, higher airflow or a different voltage header.

Key Specification

The 5 V .5 A three‑pin power interface is the single detail that determines fit. Verify that the target device supplies exactly that voltage and connector before ordering.

Punti di forza

  • 40 mm frame fits tight notebook and router chassis
  • ball bearing motor runs quietly at 5 V 0.5 A
  • three-pin connector reports speed to motherboard
  • 20 mm slim profile clears low-profile heatsinks
  • plain black finish blends into any build

Caratteristiche tecniche

ModelEFB0405VHD
ColorBlack
TypeFan only
Fan Size40mm
Bearing TypeBall
Power Connector3 Pin
LEDNon-LED
Fan Dimensions40*40*20mm

Domande su questo articolo

Should I choose the 40mm 20mm version or a different size for my notebook or router?

This model is a 40mm by 20mm fan, so verify that your device’s mounting holes and clearance match those dimensions before ordering.

What does the 5V .5A rating mean once the fan is installed in a machine?

It draws 5 volts at 0.5 amps from a 3-pin header, so the host must provide a 5V fan supply capable of delivering that current.

What does the 3-pin connector cap in practice for speed control?

The three pins carry power, ground and a tachometer signal; voltage regulation controls speed, but PWM is not supported on this connector.

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