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Two small 40mm square case fans with black frames and transparent blades

Fans

Fans KDE1204PFV2 40x40x10mm 12V case fan 2-pack

SKU CH-BDRT-ET438

A 40 mm square, 10 mm thick 12 V fan pair with velocity transducer feedback

  • Compact 40 mm frame fits tight chassis spaces
  • 12 V operation powers directly from standard headers
  • 1 W draw keeps system power budget low
  • Velocity transducer enables precise speed monitoring

Compact 40 mm case fans for tight builds

This 2-pack supplies 40 x 40 x 10 mm fans that run on 12 V and draw 1 W each. The KDE1204PFV2 model includes a velocity transducer for speed monitoring. They suit small-form-factor cases or accessories where larger coolers cannot fit.

Best for confined chassis

Builders working in enclosures with strict height limits will find these useful. Those who require higher static pressure or greater air volume should look at larger-diameter fans.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 90% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What does the 1 W power draw mean for my case airflow?

At 1 W each, the pair draws just 2 W from a 12 V header, so they add targeted airflow without stressing the motherboard fan controller.

What connector standard does the 12 V fan use and what does it limit?

A standard 12 V two-pin or three-pin header powers the motor; speed is capped by the fixed 12 V supply unless the board supports voltage control.

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