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Square black 40mm case fan with four wires

Fans

Fans DB04028B12S 12V .96A 4028 4-wire 40x40x28mm case fan

SKU CH-CBZN-2CN9B

12 V 0.96 A four-wire server fan measuring 40 by 40 by 28 mm

  • 12 V power draw rated at .96 A for high airflow
  • 40 x 40 x 28 mm form factor fits tight 4028 mounts
  • 4-wire PWM control enables precise speed regulation
  • New condition ensures full rated performance from day one

Compact 40 × 40 mm server fan

The AVC DB04028B12S is a 40 mm square case fan with a 28 mm thickness designed for 12 V server and workstation chassis. Its four-wire PWM connector allows precise speed control for targeted airflow in tight enclosures.

Four-wire PWM control

The 4-wire interface enables motherboard or fan-controller regulation so the fan runs only as fast as thermal demand requires. This reduces acoustic output and power draw compared with fixed-voltage alternatives.

Highlights

  • 12 V power draw rated at .96 A for high airflow
  • 40 x 40 x 28 mm form factor fits tight 4028 mounts
  • 4-wire PWM control enables precise speed regulation
  • New condition ensures full rated performance from day one

Specifications

No published specifications for this item yet.

Questions about this item

Will the 4-wire connector allow speed control or only monitoring?

The 4-wire interface provides PWM speed control and tachometer feedback for precise regulation.

What limits continuous operation at the rated .96 A current draw?

The 40×40×28 mm frame and 12 V supply set the thermal ceiling before airflow drops.

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