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Black square 40mm case fan 28mm thick four-pin connector

Fans

Fans W40S12BMA5-57 T07 40x40x28mm 4-pin case fan

SKU CH-CGZJ-CX4A8

A 40 mm square, 28 mm thick PWM case fan running at 12 V and 0.12 A

  • 4-pin PWM control enables precise speed adjustment
  • 12 V DC operation with 0.12 A draw keeps power use low
  • 40 × 40 × 28 mm frame fits tight chassis spaces
  • Nidec-built motor delivers reliable cooling performance

40 mm 4-pin case fan

The Fans W40S12BMA5-57 T07 is a 40 x 40 x 28 mm DC 12 V fan drawing 0.12 A. Its four-pin connector supports PWM speed control for precise airflow management. The compact frame suits tight chassis and small-form-factor builds where space is limited.

Fits narrow clearances, not high static pressure

Builders needing a slim 40 mm fan for confined layouts will find the dimensions match. Buyers who want higher static pressure for dense radiators or larger airflow volumes should look at bigger frame sizes.

How it compares

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

Price $12.99
Cheaper than about 80% 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

How much noise and heat does the W40S12BMA5-57 T07 produce when running continuously?

The fan operates at 12 V and draws 0.12 A, giving a low power draw that keeps heat output minimal for a 40 mm cooler.

What connector must my motherboard or controller provide for this 4-pin fan?

It uses a standard 4-pin PWM header, so the board needs a matching 4-pin fan connector to supply 12 V and speed control.

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