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

Fans

Fans 4010 40mm case fan 12V 0.8W 0.06A 3pin velocimetry

SKU CH-TKXN-KHNNW

40 mm case fan running at 12 V with 3-pin velocimetry support

  • Compact 40 mm frame fits tight spaces
  • 12 V, 0.8 W motor keeps power draw low
  • 3-pin header enables speed monitoring
  • 40 × 40 × 10 mm size suits small-form-factor builds

40 mm 12 V case fan with tachometer

The Fans 4010 measures 40 by 40 by 10 millimetres and runs on 12 volts. It draws 0.8 watts at 0.06 amperes through a three-pin connector that reports rotational speed. The compact frame suits tight chassis, small-form-factor builds or replacement cooling in rack appliances. Buyers needing higher airflow or larger mounting holes should look elsewhere.

Low power draw and speed feedback

At 0.8 watts the motor adds minimal heat to the system and keeps current draw low on a 12 volt rail. The third pin provides velocimetry data so the motherboard or controller can monitor fan speed in real time. Acoustic output stays modest because the narrow blade span limits tip velocity. No PWM control is included so voltage regulation is the only speed-adjustment method.

How it compares

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

Price $21.99
Pricier than about 55% 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 do I connect the 3-pin connector on this 4010 fan to my motherboard, and which orientation mistake should I avoid?

Align the 3-pin plug with the 12 V header on the board so the guide tab matches the missing pin hole; forcing it backwards bends the pins and prevents velocimetry signal feedback.

What maintenance will this 40 mm 0.8 W fan need over time?

Expect to clean dust from the 40x40x10 mm frame and blades every few months; if bearing noise appears or the 0.06 A current draw rises, replace the unit as bearings are not serviceable.

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