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Black square axial cooling fan with four mounting holes and four-wire PWM connector

Fans

Fans PF40281BX-D086-S99 40x40x28mm 12V PWM case fan

SKU CH-R9B7-67F5A

A 40 mm square axial fan with 28 mm depth runs on 12 V PWM control for precise speed regulation

  • 12V PWM control for precise speed adjustment
  • 8W power draw with 1.15A current rating
  • 40x40x28mm axial design fits tight spaces
  • 4-pin connector enables motherboard fan management

Compact 40 mm PWM case fan

The PF40281BX-D086-S99 is a 40 mm square axial fan with a 28 mm thickness designed for tight chassis spaces. It operates on a 12 V PWM four-pin connector for automatic speed control. The unit draws 1.15 A at full speed for a rated power of 13.8 W. It suits builders who need targeted airflow in small-form-factor or dense server enclosures.

Thermals and acoustics in normal use

At maximum PWM duty the fan moves air through a 4028 frame at its rated 13.8 W power envelope. The 1.15 A current draw keeps load on the motherboard header modest. Noise rises with RPM but remains proportional to the airflow delivered in confined layouts. Buyers who need near-silent operation at low loads should verify the PWM curve matches their controller.

Highlights

  • 12V PWM control for precise speed adjustment
  • 8W power draw with 1.15A current rating
  • 40x40x28mm axial design fits tight spaces
  • 4-pin connector enables motherboard fan management

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the PF40281BX-D086-S99 40mm PWM fan and what step is often missed?

Mount the 40x40x28mm frame with four screws, connect the 4-pin PWM header to the motherboard, and ensure the 12V 1.15A power limit is not exceeded by the fan controller.

What maintenance will the PF40281BX-D086-S99 axial cooling fan need later?

Periodically clean dust from the 4028 blade assembly with compressed air; the sealed bearing requires no lubrication, and the 13.8W PWM motor is rated for continuous 12V operation.

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