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Black 40mm square cooling fan 4010 5V 0.4W two wires

OEM Industries

OEM Industries KD0504PFB3-8 4010 5V 0.4W CPU cooler

SKU CH-91R8-01J2C

A 40 mm square cooling fan with ball bearing, 5 V and 0.4 W power draw

  • Fan size40 mm
  • Bearing designBall
  • Product colorBlack
  • Product typeFan only
  • Compact 40×10 mm footprint fits tight builds
  • Ball bearing reduces friction for longer service life
  • 5 V 0.4 W draw keeps power budget low
  • Two-wire design simplifies motherboard connection
  • Black frame blends with dark-themed systems

Compact 40 mm fan for tight builds

The OEM Industries KD0504PFB3-8 is a 4010 square cooling fan designed for small-form-factor systems and replacement cooling in industrial or embedded hardware. It runs on a 5 V supply and draws 0.4 W through a two-wire connection.

Check voltage header and mounting holes

Verify that your board or controller provides a 5 V fan header with the correct pin spacing for the two-wire lead. Confirm the 40 mm square footprint and 10 mm thickness match the available clearance and screw pattern in your chassis or heatsink assembly.

Low power draw and ball-bearing operation

At 0.4 W the fan adds minimal load to a 5 V rail and keeps heat output low in normal use. The ball bearing design supports continuous rotation with consistent acoustic levels, avoiding the wear-related noise increase seen in sleeve alternatives.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 55% of the 1,559 comparable items (median $19.99).
Fan size 40 mm
Lower than about 90% of the 812 comparable items (median 80 mm).

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Specifications

Product
Model nameKD0504PFB3-8
Product colorBlack
Product typeFan only
Size & build
Fan size40 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

Does the KD0504PFB3-8 ship with mounting screws or a power adapter, or must those be sourced separately?

The item is the 40 mm square fan only; mounting hardware and any power adapter are not included and must be obtained separately.

The listing shows a single 5 V 0.4 W 2-wire version — how do I confirm this is the correct one for my board header?

Match the 5 V 0.4 W rating and two-wire connector to your motherboard or controller header specifications; no other voltage or wire-count variants are offered for this model.

What does the 0.4 W power draw mean for actual cooling performance in a live system?

At 5 V and 0.4 W the fan delivers modest airflow suited to low-heat components or tight spaces; expect limited cooling capacity compared with larger or higher-wattage units.

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