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Small black square case fan 40 by 40 by 28 mm

Fans

Fans 40x40x28mm 12V 0.53A V40S12BUB5-57A05 case fan

SKU CH-DYYQ-16GBR

A 40 mm square chassis fan spins at 3250 RPM on 12 V power while drawing 0.53 A

  • Compact 40 mm frame fits tight chassis spaces
  • 12 V DC power suits standard server headers
  • 53 A draw keeps power budget low
  • 28 mm depth clears low-profile component layouts

40×40×28 mm 12 V chassis fan

This 40 mm square fan fits the X3250 M4 chassis and similar tight bays. It runs on 12 V DC and draws 0.53 A, delivering focused airflow where larger units cannot mount. The slim 28 mm profile suits 1U and compact enclosures.

Direct swap for worn OEM unit

Replaces the original V40S12BUB5-57A05 when bearings become noisy or airflow drops. The upgrade is worth it if the server runs continuously in a warm rack and the old fan can no longer maintain safe component temperatures. Buyers needing higher static pressure or PWM control should look elsewhere.

How it compares

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

Price $13.99
Cheaper than about 70% 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

Will the 40 mm by 40 mm frame with 28 mm depth fit my chassis fan slot?

The fan measures 40 mm square and 28 mm thick, so it fits any standard 40 mm mounting holes with enough clearance behind the frame.

Which way does the three-wire connector key so I do not bend the pins?

The 12 V connector has a single key tab; align it with the motherboard header notch and press straight down — forcing it sideways bends the pins.

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