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Two small square 40mm case fans black frame three-pin connector

Fans

Fans 4010 40mm case fan 12V 0.8W 3-pin 2pcs

SKU CH-94M1-DJE6W

Two 40 mm case fans with 12 V power and 3-pin speed monitoring

  • Compact 40 × 40 × 10 mm size fits tight chassis spaces
  • 12 V / 0.8 W draw keeps power load low
  • 3-pin connector supports speed monitoring
  • Twin pack covers intake and exhaust in one purchase

Dual 40 mm case fans for compact cooling

Two 4010 fans measure 40 by 40 by 10 mm and run on 12 V at 0.8 W and 0.06 A each. The 3-pin connectors provide velocimetry feedback so the system can monitor rotation speed. They suit small-form-factor builds, GPU shrouds or tight chassis spaces where larger fans cannot fit.

Upgrade from single-fan or passive setups

Adding the second fan doubles airflow in confined areas such as mini-ITX cases or heatsink ducts. The jump is worth it when temperatures climb under load and a single 40 mm unit cannot move enough air. Builders who need higher static pressure or larger frame sizes should look elsewhere.

Highlights

  • Compact 40 × 40 × 10 mm size fits tight chassis spaces
  • 12 V / 0.8 W draw keeps power load low
  • 3-pin connector supports speed monitoring
  • Twin pack covers intake and exhaust in one purchase

Specifications

No published specifications for this item yet.

Questions about this item

What are the exact mounting hole dimensions for the 4010 40mm fan?

The fan measures 40x40x10 mm, so it fits standard 40 mm mounting patterns with a 10 mm thickness.

How do I connect the 3-pin connector to enable velocimetry monitoring?

Plug the 3-pin header into a motherboard fan header; the third wire reports speed so the BIOS or software can read RPM.

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