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Black 40mm square cooling fan, 10mm thick, two-wire 12V power connector, no LED lighting

OEM Industries

OEM Industries CHA4012CS 40mm 12V 0.075A 2-pin CPU cooler

SKU CH-AESB-T7VSH MPN CHA4012CS

A 40 mm 12 V fan with a 2-pin connector for compact CPU or case cooling

  • ColorBlack
  • TypeFan only
  • Fan Size40mm
  • Power Connector2 Pin
  • LEDNo
  • Compact 40 mm footprint fits tight chassis spaces
  • 12 V 0.075 A draw keeps power use low
  • 10 mm slim profile clears low-clearance builds
  • Two-pin connector enables simple motherboard control
  • Black frame blends cleanly with dark-themed systems

Compact 40 mm fan for tight builds

This OEM Industries CHA4012CS is a 40 mm square frame fan only, measuring 40 by 40 by 10 mm. It runs on 12 V and draws 0.075 A through a 2-pin power connector. The black housing has no LED lighting. It suits small-form-factor cases or replacement cooling where space is at a premium.

Replaces noisy or failed 4010 fans

The unit fits the same 4010 footprint as many stock case and heatsink fans, so it drops in without new mounting holes. The jump is worth it when the original fan has seized, rattles, or no longer spins at full speed. It restores airflow without changing the thermal design of the cooler or chassis.

Moves modest air volume for low-heat loads

At 12 V and 0.075 A the motor delivers enough flow for chipset heatsinks, embedded boards, or slim 1U servers. It runs out of headroom on high-TDP CPUs or heavily restricted radiators where static pressure must overcome dense fins. Buyers needing strong static pressure or PWM speed control should look elsewhere.

Highlights

  • Compact 40 mm footprint fits tight chassis spaces
  • 12 V 0.075 A draw keeps power use low
  • 10 mm slim profile clears low-clearance builds
  • Two-pin connector enables simple motherboard control
  • Black frame blends cleanly with dark-themed systems

Specifications

ModelCHA4012CS
ColorBlack
TypeFan only
Fan Size40mm
Power Connector2 Pin
LEDNo

Questions about this item

What are the physical dimensions of the CHA4012CS fan for mounting?

The fan measures 40 by 40 by 10 mm, matching the standard 40 mm square footprint.

How do I connect the 2-pin power connector, and what is the common mistake?

Plug the 2-pin header onto a 12 V fan socket; the mistake is reversing the polarity, which prevents the fan from spinning.

When will the CHA4012CS need replacement or maintenance?

The sleeve-bearing motor typically requires replacement when noise increases or rotation slows after extended continuous operation.

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