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Sunon GM1204PQB1-8A 1U2U server fan 12V 2.6W three-wire

Fans

Fans GM1204PQB1-8A 1U2U server 4028 12V 2.6W 3 lines case fan

SKU CH-RD5C-ZWF3R

12 V server case fan with three-wire PWM control for 1U and 2U chassis

  • Low-noise operation suits quiet server rooms
  • 12 V supply simplifies standard PSU wiring
  • 6 W draw keeps power budget low
  • Three-wire connection enables speed monitoring

Sunon GM1204PQB1-8A server fan

The Sunon GM1204PQB1-8A is a 12 V case fan designed for 1U and 2U server chassis. It draws 2.6 W and uses a three-wire connection for speed monitoring. The unit is built for dense rack environments where quiet, reliable airflow is required.

Installation and common issues

Mounting uses standard 1204 hole spacing compatible with 1U and 2U brackets. The three-wire lead plugs directly into a 12 V fan header; ensure the connector orientation matches the motherboard pinout. A frequent issue is cable length falling short in deeper chassis, requiring an extension. Another common problem occurs when the fan header cannot supply enough current for multiple units on a single splitter.

Highlights

  • Low-noise operation suits quiet server rooms
  • 12 V supply simplifies standard PSU wiring
  • 6 W draw keeps power budget low
  • Three-wire connection enables speed monitoring

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the GM1204PQB1-8A is running correctly after installation?

Verify the fan spins and report a 12 V, 2.6 W draw through the three-wire connector; the 4028 RPM rating should appear in BIOS or monitoring software.

What comes in the box with the GM1204PQB1-8A and what must I source separately?

The package contains the 1204 model 1U2U server fan with its three-line power lead; mounting screws and any fan-controller cable are not included.

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