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Small black 4cm cooling fan with three wires and a switch

TSUJ

TSUJ Kepler-C72J-OYS-0392 2 in 1 accessory

SKU CH-N960-MQJDN

DC 12 V 1.44 W 4 cm three-wire cooling fan with switch control

  • Key featuresDC12 V 1.44 W EF40201BX-Q18C-F99 4020 4 cm 3-Wire Switch Coo
  • DC 12 V power delivers efficient 1.44 W cooling
  • 3-wire switch enables precise fan speed control
  • Compact 4020 form factor fits tight 2-in-1 chassis
  • Low 1.44 W draw preserves battery life longer

TSUJ 2-in-1 laptop cooling fan

This 12 V 1.44 W cooling fan is designed as an accessory for 2-in-1 laptops. The 4 cm EF40201BX-Q18C-F99 unit uses a three-wire switch connection for speed monitoring. It fits systems that require the Kepler-C72J-OYS-0392 part number for thermal management.

Three-wire switch enables RPM feedback

The three-wire switch interface provides rotational-speed feedback to the host device so fan curves can respond to load. Builders needing a different voltage, connector type or larger frame will need a separate solution.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 96% of the 7,473 comparable items (median $56.99).

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Specifications

Product
Brand nameTSUJ
Part numberKepler-C72J-OYS-0392

Questions about this item

When will the EF40201BX-Q18C-F99 4020 fan need replacement?

The DC12V 1.44W fan is a mechanical component; plan to replace it when bearing noise increases or airflow drops below cooling requirements.

What thermal limit appears first during continuous 12V operation?

Sustained 1.44W load makes the 4020 motor's temperature rise the first limiting factor before the 3-wire switch control engages.

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