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Black 40mm square cooling fan with 3-pin connector

OEM Industries

OEM Industries AD0412LB-G76 40mm 3-pin CPU cooler

SKU CH-SKAY-4RPQE

40 mm ball-bearing fan with 3-pin 12 V power connector for compact CPU cooling

  • Fan size40 mm
  • Bearing designBall
  • Power input connector3 Pin
  • Product colorBlack
  • Product typeFan only
  • 40 mm compact frame fits tight builds
  • Ball bearing motor reduces wear over time
  • 12 V 0.07 A draw keeps power use low
  • Three-pin connector enables speed monitoring
  • No LED keeps lighting clean and simple

Compact 40mm ADDA cooler

The OEM Industries AD0412LB-G76 is a 40mm square fan with a 10mm thickness designed for targeted CPU cooling. It operates on 12V power drawing 0.07A through a standard three-pin connector. The ball-bearing construction supports continuous operation in compact chassis or industrial enclosures. No LED lighting is included.

Replaces larger low-profile coolers

This fan-only unit upgrades from bulkier heatsink assemblies where vertical clearance is below 10mm or mounting holes match a 40mm pattern. The jump is worth it when a full cooler blocks adjacent components or exceeds the thermal budget of a small-form-factor board. Builders needing higher static pressure or PWM control should look elsewhere.

Fits tight 40mm mounts

The 40x10mm frame aligns with standard 40mm mounting holes and requires a three-pin header supplying 12V. It frees up vertical space around the socket for tall memory modules or voltage-regulator heatsinks. The three-wire connection provides tachometer feedback for BIOS monitoring without needing a four-pin PWM header.

How it compares

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

Price $17.99
Cheaper than about 60% 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 nameAD0412 lb-G76
Product colorBlack
Product typeFan only
Power
Power input connector3 Pin
Size & build
Fan size40 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

What are the exact mounting dimensions for the AD0412LB-G76 cooler?

The cooler measures 40mm square and 10mm thick, matching the standard 4010 footprint for direct screw mounting.

How do I connect the 3-pin power connector correctly?

Align the guide tab on the 3-pin plug with the motherboard header notch; forcing it backwards bends pins and prevents speed reporting.

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

Ball bearings typically run for years; replace the unit when noise increases or RPM drops below spec under 12V 0.07A load.

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