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Small square 12V case fan with three-wire connector

Fans

Fans MGT40012ZB-R20 4020 40x40x20mm 12V .22A case fan

SKU CH-K16R-953BK

A 40 × 40 × 20 mm case fan runs on 12 V at 0.22 A with a three-wire speed signal

  • 12 V operation powers compact builds
  • 40 × 40 × 20 mm frame fits tight spaces
  • 22 A draw keeps energy use low
  • three-wire connector enables speed monitoring

Compact 40 mm case fan

The Fans MGT40012ZB-R20 is a 40 x 40 x 20 mm case fan that runs on 12 V and draws 0.22 A. It uses a three-wire connector for speed monitoring and fits the standard 4020 mounting pattern. The unit is supplied new and ready for installation in tight spaces.

Builders needing a small 12 V cooler

This fan suits builds that require a 40 mm frame with a three-wire speed signal. It is not for systems that need larger frame sizes, higher airflow ratings, PWM control via a four-wire header, or voltage levels other than 12 V.

How it compares

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

Price $9.99
Cheaper than about 91% 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

Does the MGT40012ZB-R20 need a 12 V three-pin header to run?

Yes, it draws .22 A at 12 V and uses a three-wire connector that plugs into a standard 12 V fan header on the motherboard or controller.

Will this 4020 fan fit in the same 40 mm mounting holes as my old 40x40x20 mm cooler?

The frame is 40 mm square and 20 mm thick, matching the 4020 footprint, so it aligns with existing 40 mm screw holes.

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