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Black 9 cm square case fan with four wires visible

Fans

Fans PF92251B1-0000-S99 12V 4.7W 9CM 4-wire case fan

SKU CH-26VP-MPNZG

A 12 V, 4.7 W, 9 cm case fan with four-wire control for high airflow cooling

  • Efficient cooling with 4.7W power draw
  • Precise speed control via 4-wire PWM
  • Reliable 12V DC operation for standard builds
  • Compact 9CM design fits tight chassis spaces

9 cm 4-wire case fan

This 9 cm case fan uses a 4-wire PWM connection for speed control from a motherboard header. It draws 4.7 W at 12 V and is built for chassis positions that require a compact frame with direct airflow. Builders who need a small-footprint fan for tight clearance will find it fits standard 92 mm mounting points.

Airflow capacity and limits

The fan delivers large air flow for its 9 cm size, suitable for case exhaust or targeted component cooling where space is limited. It runs out of headroom in high-restriction layouts such as dense radiator stacks or filters that demand higher static pressure than a 4.7 W motor can sustain. Buyers who need more airflow than a single 9 cm unit can provide should plan for additional fans or a larger diameter alternative.

How it compares

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

Price $21.99
Pricier than about 55% 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

Will the 4-wire PWM connector on this 12V fan work with my older motherboard that only has 3-pin headers?

Yes, the 4-wire plug fits a 3-pin header; the fan will run at full 12V speed continuously since the PWM control line is not connected.

How can I confirm the fan is moving air correctly once installed?

With the system on, hold a light tissue near the 9CM frame; it should be pulled against the intake or pushed away from the exhaust, proving airflow.

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