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Black rectangular 40 by 40 by 56 mm server fan with four-wire connector

Fans

Fans DF04056B12UDimensions 40x40x56mm 12V 1.88A case fan

SKU CH-P8T9-2P5GK MPN DF04056B12UDimensions

A 40×56 mm 12 V case fan delivering 29.8 CFM at 480 Pa static pressure with a four-ball bearing rated for 50,000 hours

  • High airflow of 29.8 CFM for compact cooling
  • Strong static pressure of 480 Pa pushes air through dense obstacles
  • Four-ball bearing rated for 50000 hours of continuous use
  • 40×40×56 mm frame fits 1U server and tight industrial spaces
  • 4-wire PWM interface enables precise speed control up to 18000 RPM

40 mm 1U Server Cooling Fan

This 40 x 40 x 56 mm centrifugal fan delivers 29.8 CFM at 480 Pa static pressure from a 12 V supply drawing 1.88 A. Four ball bearings support a maximum speed of 18,000 RPM with a rated life of 50,000 hours. The four wire harness uses red and orange for positive and black and grey for negative connections.

Suits high pressure 1U server and industrial chassis

Builders needing quiet operation or standard axial airflow should look elsewhere. The 62.5 dB noise level and centrifugal design target dense rack enclosures medical equipment and industrial drives where static pressure matters more than silence.

480 Pa maximum static pressure decides fit

This single figure determines whether the fan can overcome the restriction of your 1U server heatsink or industrial duct. If the system resistance is lower a lower pressure axial fan may be quieter and sufficient.

How it compares

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

Price $32.99
Pricier than about 80% 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 is the 3.3 cm hole distance on the DF04056B12U for?

The 3.3 cm hole distance matches standard 40 mm fan mounting points, so the fan screws directly into a 40 × 40 mm case or server bracket.

How do I connect the four-wire interface on this 12 V fan?

Connect the red and orange wires to the positive 12 V supply and the black and grey wires to ground; the fan draws 1.88 A at 22.56 W.

When should I expect to replace the four-ball bearing fan?

The bearing is rated for 50000 hours of continuous operation at 18000 RPM; plan replacement around that interval.

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