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Small square 12V case fan with three wires

Fans

Fans EFB0412HD 4020 12V 0.12A 40x40x20mm case fan

SKU CH-XAS6-BCKFM

12 V case fan measuring 40 x 40 x 20 mm with three-wire speed control

  • Compact 40×40×20 mm footprint fits tight chassis
  • 12 V, 0.12 A draw keeps power use low
  • Three-wire tachometer output enables speed monitoring
  • Delta-built motor delivers reliable airflow in small spaces

Compact 40 mm 12 V case fan

The Delta EFB0412HD is a 40 mm square case fan with a 20 mm thickness. It runs on a 12 V supply and draws 0.12 A through a three-wire connection that provides speed reporting. The unit is supplied new and suits tight chassis spaces where a 4020 form factor is required.

Suits builds with 40 mm mounts

This fan fits systems that accept a 40 mm mounting pattern and need a low-profile 12 V cooler with tachometer feedback. It is not for builds that demand larger frame sizes, higher airflow ratings, or PWM speed control.

Highlights

  • Compact 40×40×20 mm footprint fits tight chassis
  • 12 V, 0.12 A draw keeps power use low
  • Three-wire tachometer output enables speed monitoring
  • Delta-built motor delivers reliable airflow in small spaces

Specifications

No published specifications for this item yet.

Questions about this item

What screw spacing does the 40 mm square frame use for mounting?

The fan has a 40 mm square frame with mounting holes at each corner designed for standard 40 mm fan screws.

How do I connect the three-wire lead so the speed signal works?

Plug the three-pin connector into a 3-pin or 4-pin motherboard header; the third wire reports RPM to the board.

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