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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.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $20.99
Pricier than about 62% of the 7,839 comparable items (median $14.99).

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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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