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Small black square case fan with visible blades and cable

Fans

Fans 4028 4CM switch fan 12V .81A TFA0412CN

SKU CH-01BF-811C1

A 40 mm case fan running at 12 V and 0.81 A for high airflow

  • High airflow for effective component cooling
  • 12 V operation for standard power compatibility
  • 81 A current draw for efficient energy use
  • 4028 model fits 40 × 28 mm mounting spaces

4028 4CM switch fan 12V .81A

The TFA0412CN is a 40 mm case fan designed for compact enclosures that need focused airflow. It runs on a 12 V supply and draws 0.81 A to deliver high air volume in tight spaces. The switch function allows basic speed control without extra controllers. It suits builders working with small-form-factor cases or industrial chassis.

One-year warranty covers manufacturing defects

The included one-year warranty protects against early failure under normal use. No extra cables, adapters or mounting screws are mentioned in the supplier data. Buyers who need PWM control or RGB lighting should look elsewhere. Those requiring larger diameters or lower noise profiles will not find them here.

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

How long before the 12V .81A motor needs replacement?

The motor is rated for continuous operation at 12 volts and 0.81 amps; lifespan depends on duty cycle and ambient temperature.

What limits runtime when the TFA0412CN runs at full speed?

Heat buildup in the 4028 frame is the first limit during sustained use.

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