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Small black 40mm square cooling fan with two power wires

OEM Industries

OEM Industries FD1240-A2041D 40mm Fan 12V 0.16A 2 Pin Ball Bearing

SKU CH-50PJ-3A24B

A 40 mm ball-bearing fan runs on 12 V and 0.16 A with a two-pin connector

  • Fan size40 mm
  • Bearing designBall
  • Power input connector2 Pin
  • Product colorBlack
  • Product typeFan only
  • Compact 40 mm frame fits tight chassis spaces
  • 12 V DC input runs from standard system rails
  • Low 0.16 A draw keeps power budget light
  • Ball bearing design resists wear for longer service life
  • Two-pin connector plugs straight into motherboard headers

Compact 40 mm cooling fan for tight builds

This 40 mm square fan fits the narrowest CPU cooler mounts and small-form-factor chassis where larger rotors cannot be installed. It runs on a 12 V rail and draws only 0.16 A, so it adds minimal load to the power budget. The two-pin connector provides simple voltage control without PWM signalling. Ball-bearing construction gives a longer service life than sleeve alternatives in the same footprint.

Ball bearing and two-wire simplicity

The ball-bearing motor reduces friction and resists dust ingress better than hydraulic or sleeve types, keeping acoustic output stable over time. With no LED or third wire, the fan integrates cleanly into legacy headers or basic fan controllers that only supply power and ground. The black frame and blades blend into dark interiors without drawing visual attention. No additional cables, adapters or mounting hardware are included in the package.

Targeted airflow for low-TDP coolers

At 40 by 40 by 20 mm the fan delivers focused airflow across narrow heatsink fins typical of low-profile or embedded CPU coolers. It handles thermal loads from modest processors and chipset heatsinks where space forbids a larger frame. The thin 20 mm profile clears tight side-panel clearances and stacked daughter boards. Builders needing higher static pressure for dense radiators or larger tower coolers should look elsewhere.

How it compares

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

Price $16.99
Cheaper than about 70% 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 nameFD1240-A2041D
Product colorBlack
Product typeFan only
Power
Power input connector2 Pin
Size & build
Fan size40 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

How long will the ball bearing last before the FD1240-A2041D needs replacement?

The 12 V, 0.16 A ball-bearing motor is rated for continuous operation; typical service life reaches tens of thousands of hours before bearing wear requires a swap.

What limit appears first when this 40 mm fan runs at 12 V non-stop?

Sustained 12 V, 0.16 A draw makes the motor's thermal ceiling the first bottleneck; airflow drops once the coil hits its temperature ceiling.

How much noise and heat does the FD1240-A2041D produce during all-day use?

Ball-bearing design keeps acoustic output low while the 12 V, 0.16 A input generates only modest warmth inside a 40x40x20 mm frame.

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