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Small black 40mm square 1U server fan with three-pin connector

SXDOOL

SXDOOL Delta PFB0412EHN-BF00 40x40x28mm 12V .72A 3-pin 1U server fan

SKU CH-GPVW-Z4NSD

40 mm square, 28 mm thick 12 V 0.72 A 3-pin fan built for 1U server cooling

  • Compact 40 mm square footprint fits tight 1U chassis
  • 12 V DC input matches standard server power rails
  • 72 A draw keeps power budget low
  • Three-pin connector enables speed monitoring
  • 28 mm thickness suits slim rackmount enclosures

Delta PFB0412EHN-BF00 40mm fan

The Delta PFB0412EHN-BF00 is a 40x40x28mm 12V fan rated at 0.72A. It uses a 3-pin connection for power and speed reporting. The unit is built for 1U server chassis where vertical space is limited. Buyers needing larger frame sizes or different voltage ratings should look elsewhere.

3-pin interface limits

The 3-pin connector supplies 12V DC and a tachometer signal without PWM control. Speed varies only by changing the supply voltage. Headers without voltage regulation will run the fan at full speed continuously. Systems requiring 4-pin PWM control cannot use this fan for automated curves.

1U server cooling capacity

At 28mm thick the fan fits standard 1U height restrictions while moving air through dense component layouts. The 0.72A draw delivers strong static pressure for restrictive heatsinks. It is not suited for quiet desktop builds where lower RPM and larger diameters are preferred. High-density rack enclosures with limited clearance are the intended environment.

How it compares

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

Price $13.99
Cheaper than about 70% 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

Which version of the Delta PFB0412EHN-BF00 should I choose for a 1U server chassis?

The fan measures 40x40x28 mm and uses a 3-pin connector at 12 V, so it fits standard 1U bays that accept a 4028 frame with three-wire power.

What does the 0.72 A rating mean once the fan is installed?

At 12 V the fan draws 0.72 A, so the motherboard header or fan controller must supply at least that much current on the 12 V rail.

How does the 3-pin interface affect speed control in practice?

The three wires provide power, ground and a tachometer signal; voltage regulation on the 12 V line changes speed, while PWM control is not supported on this connector.

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