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Ten small square black 40mm case fans in a row

Fans

Fans KDE1204PKV3 4020 40x40x20 DC 12V 0.40W case fan 10pcs

SKU CH-XX0V-EE2BD

Pack of ten 40 mm square DC 12 V case fans, each 20 mm thick and rated at 0.40 W

  • 10 fans per pack for multi-slot cooling
  • 12 V DC input fits standard PC headers
  • 40 × 40 × 20 mm compact frame for tight spaces
  • 40 W low draw reduces PSU load

Compact 40 mm DC fan pack

This pack contains ten KDE1204PKV3 4020 fans measuring 40 by 40 by 20 mm. Each unit runs on 12 V DC power and draws 0.40 W. The fans are designed for server and inverter cooling in tight spaces.

Best for dense multi-fan setups

Builders needing many small fans for rack gear or compact enclosures will find this lot convenient. Buyers who require larger frame sizes, higher airflow or PWM control should look elsewhere.

How it compares

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

Price $25.99
Pricier than about 65% 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

Will the sleeve bearings in these 4020 fans need lubrication or replacement after continuous server use?

Sleeve-bearing fans of this size and voltage will eventually develop bearing noise or wear; plan to replace any unit that becomes audible or spins irregularly.

What limit appears first when these 12 V 0.40 W fans run continuously in an inverter enclosure?

The 0.40 W motor reaches its thermal ceiling before airflow drops, so sustained operation is bounded by motor temperature rather than static pressure.

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