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Small black square 40mm case fan with three wires

Fans

Fans EFB0405HA 4010 40x40x10mm 5V 0.20A 3-wire case fan

SKU CH-RMKD-W8MWM

40 mm square, 10 mm thick case fan running on 5 V with 0.20 A draw and three-wire speed monitoring

  • Compact 40 × 40 × 10 mm footprint fits tight chassis
  • 5 V 0.20 A draw keeps power use low
  • Three-wire connection enables speed monitoring
  • New original EFB0405HA 4010 unit ready to install

Compact 40 mm 5 V case fan

The EFB0405HA is a 40×40×10 mm case fan designed for 5 V operation. It draws 0.20 A and suits tight spaces in small-form-factor PCs or embedded enclosures. The three-wire lead provides tachometer feedback for speed monitoring. Buyers who need higher airflow or a larger frame should look elsewhere.

Three-wire 5 V connection

The fan uses a standard three-pin connector that carries power, ground and a speed signal. Mounting holes match the 40 mm square pattern common on compact chassis and heatsinks. No PWM control wire is present so voltage regulation is the only speed-control method. Build quality follows the original Delta specification for reliable long-term operation.

Highlights

  • Compact 40 × 40 × 10 mm footprint fits tight chassis
  • 5 V 0.20 A draw keeps power use low
  • Three-wire connection enables speed monitoring
  • New original EFB0405HA 4010 unit ready to install

Specifications

No published specifications for this item yet.

Questions about this item

Does the three-wire connector provide PWM speed control or only RPM reporting?

The three-wire design supplies power, ground and a tachometer signal for speed monitoring; it does not carry a PWM control line.

Will the 40 mm square frame with 10 mm thickness fit a standard 4010 mounting pattern?

Yes, the 40 × 40 × 10 mm dimensions match the common 4010 hole spacing used in many small-form-factor cases and heatsinks.

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