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Square 12V DC server fan 40x40x28mm three-wire

Fans

Fans FD1240-A0041M DC 12V 0.35A 40x40x28mm 3-wire Server Square Fan

SKU CH-E9S1-XB75N

A 40 mm square DC fan runs at 12 V and 0.35 A for server cooling

  • Runs on standard 12 V server rails
  • 40 mm square frame fits tight bays
  • 28 mm depth clears crowded chassis
  • 3-wire tachometer enables speed monitoring

Compact 40mm server fan

This 40mm square fan fits tight server chassis and industrial enclosures where space is limited. It runs on 12V DC power and uses a three-wire connection for speed monitoring. The 28mm thickness allows installation in standard 1U or blade systems. Buyers needing larger airflow volumes or wider mounting patterns should look elsewhere.

Steady 0.35A continuous draw

At a constant 0.35A the motor maintains stable RPM without the current spikes seen in shorter bursts. This predictable load simplifies power-budget planning for dense racks. The 1240 model designation identifies this specific frame and electrical profile. Systems requiring variable-speed headers or PWM control are not supported by this three-wire design.

How it compares

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

Price $22.99
Pricier than about 58% of the 8,339 comparable items (median $19.99).

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Specifications

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