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Square black server fan, 40 by 40 by 28 mm, two wire leads

Fans

Fans KD2404PQB1 24V 2.0W 40x40x28mm 2-wire Server Square Fan

SKU CH-56AR-BW7A3

A 24 V DC server fan measuring 40×40×28 mm with two-wire power and 2.0 W draw

  • 24 V DC operation for stable server cooling
  • 0 W power draw keeps energy use low
  • 40 × 40 × 28 mm frame fits tight 40 mm bays
  • Two-wire design simplifies installation and wiring

Product identity

This is a 40 mm square case fan rated for 24 V DC and 2.0 W power draw. It uses a two-wire connection and measures 28 mm thick, matching the KD2404PQB1 specification from SUNON. The unit is supplied new for server and industrial cooling applications.

Who this suits

Installers needing a 24 V, 40 mm frame fan with a two-wire lead for rack or blade systems can use this model. Buyers who require PWM speed control, a three or four-wire connector, or a different voltage should look at other options.

How it compares

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

Price $21.99
Pricier than about 55% 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

How do I install the KD2404PQB1 40mm server fan and what step is often missed?

Mount the fan using the standard 40mm square frame holes, then connect the 2-wire lead to a 24V DC source; the step often missed is verifying the polarity before powering on.

What maintenance will the KD2404PQB1 24V 2.0W fan need over time?

Periodically clean dust from the blades and frame to maintain airflow; if bearing noise increases or rotation becomes uneven, replace the entire 40x40x28mm unit.

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