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Black square 70mm frame with transparent blades and four-wire cable

Fans

Fans MF70251V2-Q020-S9A 7025 12V 3.17W 70x70x25mm 4-wire case fan

SKU CH-4P6B-DWGRW

A 70 mm square, 25 mm thick case fan with 4-wire PWM control, running on 12 V and drawing 3.17 W

  • 12 V operation for standard PC power supply compatibility
  • 17 W power draw keeps energy use low
  • 70 × 70 × 25 mm frame fits tight chassis spaces
  • 4-wire PWM control enables precise speed regulation

70 mm 4-wire 12 V chassis fan

This 70 mm square fan uses a four-wire PWM connection for speed control and runs on a 12 V supply. It fits standard 7025 mounting holes and draws 3.17 W at full speed. The compact frame suits small-form-factor cases and tight GPU clearances. Builders who need a low-profile exhaust or intake option will find the dimensions convenient.

PWM control limits at low voltage

The four-wire interface allows the motherboard to modulate fan speed down to a minimum duty cycle, but the motor still requires 12 V to start reliably. Below that threshold the fan may stall or run unevenly. Systems that only provide 5 V or variable-voltage headers cannot drive this model correctly. Buyers who need voltage-regulated operation should choose a three-wire alternative.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 57% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Which 7025 4-wire version should I choose for a 12 V fan header?

The MF70251V2-Q020-S9A is a 12 V, 3.17 W, 70 × 70 × 25 mm fan with a standard 4-wire PWM connector, so it fits any motherboard or controller header that supplies 12 V.

What does the 3.17 W rating mean once the fan is installed in my case?

At 12 V the fan consumes 3.17 W, which determines the maximum airflow and static pressure it can deliver; your motherboard’s PWM curve will spin it up or down within that power envelope.

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