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Square black cooling fan with four-pin connector and wire grille

Ruth's sister

Ruth's sister 12V 1.3A 5900PRM 12038 internal power cable

SKU CH-A71F-WTWZQ

A 12 V 1.3 A dual ball-bearing brushless fan spins at 5900 RPM with a 4-pin connector for server cases

  • 12 V 1.3 A power draw keeps server cooling efficient
  • 5900 RPM dual ball-bearing motor delivers sustained high airflow
  • 4-pin PWM connector enables precise speed control
  • Brushless design reduces friction for longer operational life

High-speed 12 V server cooling fan

This 12038 frame fan delivers 5900 RPM at 12 V and 1.3 A using a brushless dual ball bearing motor. It fits server cases such as the S7, S9, D3, L3, E9 and T9 platforms. The four-pin connector enables PWM speed control for precise airflow management.

Thermals, noise and power draw

At full speed the unit draws 1.3 A from a 12 V rail, moving significant air volume through dense chassis layouts. Dual ball bearings reduce friction noise compared with sleeve alternatives while maintaining consistent rotational stability. The brushless design limits heat build-up in the motor during continuous operation. Power consumption scales linearly with PWM duty cycle, so acoustic output drops quickly when the curve reduces RPM.

Highlights

  • 12 V 1.3 A power draw keeps server cooling efficient
  • 5900 RPM dual ball-bearing motor delivers sustained high airflow
  • 4-pin PWM connector enables precise speed control
  • Brushless design reduces friction for longer operational life

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 4-pin PWM cable to my server motherboard and which orientation mistake should I avoid?

Align the keyed 4-pin connector with the motherboard header so the tab faces the latch; forcing it backwards bends pins and prevents speed control.

When will the dual ball bearing fan need replacement and what symptom appears first?

Expect years of continuous operation; the first sign of wear is a rising noise floor or RPM dropping below 5900 under load.

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