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Black 140mm square case fan with sleeve bearing and 3-pin connector

SXDOOL

SXDOOL DF1402512SEDN 140mm case fan 1050RPM 3-Pin

SKU CH-AXXZ-AT6MS MPN DF1402512SEDN

A 140mm case fan running at 1050 RPM with a 3-pin connector, sleeve bearing and 18 dBA noise level for quiet PC or server cooling

  • TypeCase Fan
  • Fan Size140mm
  • RPM<1600 RPM
  • Noise Level15 - 20 dBA
  • Power Connector3 Pin
  • ColorBlack
  • Quiet operation at 18 dBA noise level
  • Low power draw of 0.72W at 12V
  • 140mm size fits standard case mounts
  • 1050 RPM speed for steady airflow
  • Sleeve bearing design for reliable cooling

140mm 3-Pin Case Fan

The SXDOOL DF1402512SEDN is a 140mm case fan designed for standard PC and server cooling. It connects via a 3-pin motherboard header and operates at a fixed 1050 RPM with a sleeve bearing. The fan suits builders who need simple airflow without lighting or speed control.

3-Pin Voltage Control Limits

The 3-pin interface adjusts speed by varying voltage rather than a PWM signal. This means the fan runs at its rated 1050 RPM when fed 12V and cannot be dropped to very low speeds or stopped completely. Motherboards without voltage control will run the fan at full speed continuously.

Low-Noise Airflow Headroom

At 1050 RPM the fan produces between 15 and 20 dBA, placing it in the quiet range for background cooling. The 0.72W draw leaves ample headroom on any 12V header rated for typical current limits. It is not intended for high-static-pressure tasks such as dense radiators or restrictive filters.

Highlights

  • Quiet operation at 18 dBA noise level
  • Low power draw of 0.72W at 12V
  • 140mm size fits standard case mounts
  • 1050 RPM speed for steady airflow
  • Sleeve bearing design for reliable cooling

Specifications

TypeCase Fan
Fan Size140mm
RPM<1600 RPM
Noise Level15 - 20 dBA
Power Connector3 Pin
ColorBlack
LEDNon-LED

Questions about this item

Should I pick the 1050 RPM model or a faster 1600 RPM version?

This model runs at 1050 RPM with a maximum below 1600 RPM, delivering 18 dBA noise. Choose it for quieter operation; a higher-RPM fan would move more air but be louder.

What does the 18 dBA rating mean once the fan is installed in my case?

At 1050 RPM the fan produces about 18 dBA, which is barely audible in a typical build. It suits silent PCs or servers where low noise matters more than maximum airflow.

The 3-pin connector — does it limit speed control compared to PWM?

The 3-pin interface uses voltage regulation, so the motherboard can still vary speed between the 1050 RPM operating point and the sub-1600 RPM ceiling, but not with PWM precision.

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