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Small black square 40mm case fan with three-pin connector

SXDOOL

SXDOOL SXD4010B05M 40mm case fan 5V 0.12A 3-pin double ball bearing

SKU CH-KA6Y-4W8BT

A 40mm case fan running at 5V with a 3-pin connector and double ball bearings rated for 80,000 hours

  • Fan size40 mm
  • Operating noise5–10 dBA
  • Power input connector3 Pin
  • Ultra-quiet operation at just 5 to 10 dBA
  • Double ball bearing rated for 80,000 hours at 25°C
  • Compact 40mm frame fits ultra-slim builds
  • 5V 3-pin connector for simple low-voltage power
  • Flame-retardant PBT frame and blades meet VO grade

Compact 40mm 5V fan for tight builds

This 40 by 40 by 10 millimetre frame fits small-form-factor cases, rack units or embedded boards where larger fans cannot mount. It draws 0.12 amps from a 5 volt rail and connects through a standard three-pin header so speed reporting is available.

5 to 10 dBA acoustic ceiling at full speed

The double ball bearing spins counter-clockwise and stays within a 5 to 10 dBA band, which is audible in a silent room but masked by typical component noise. Rated voltage tolerance is plus or minus 15 percent, so a clean 5 volt supply keeps it inside the published range.

PBT glass-fibre frame

Both frame and impeller use PBT with 30 percent glass fibre and VO flame-retardant grade, giving structural rigidity without metal weight. Insulation resistance exceeds 500 megohms, and the bearing is specified for 80 000 hours at 25 degrees ambient across an operating window of minus 10 to plus 70 degrees Celsius.

How it compares

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

Price $6.99
Cheaper than about 94% of the 8,339 comparable items (median $19.99).
Fan size 40 mm
Lower than about 90% of the 1,114 comparable items (median 120 mm).

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Specifications

Power
Power input connector3 Pin
Size & build
Fan size40 mm
Environment & compliance
Operating noise5–10 dBA

Questions about this item

Should I choose the 5V or a 12V version of this 40mm fan?

This model runs on 5V DC at 0.12A. A 12V variant is not offered in this listing.

How loud is 5 to 10 dBA inside a PC case?

At 5 to 10 dBA the fan is near-silent; most users will not hear it over other components.

What does the 3-pin connector limit for speed control?

The 3-pin header supports voltage-based regulation only; PWM duty-cycle control is not available.

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