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Square black axial cooling fan with four wires and a four-pin connector

Vszerda

Vszerda THA0412AD 4020 Cooling Fan 12V 0.60A 20.6CFM 5.16W 4-Pin 40x40x20mm

SKU CH-8RNP-Z0DWD MPN THA0412AD

Axial 40 mm DC 12 V fan delivering 20.6 CFM at 5.16 W with a 4-pin connector

  • Axial design moves 20.6 CFM through tight spaces
  • 12 V DC input fits standard 12 V rails
  • 4-pin PWM header enables precise speed control
  • 40 × 40 × 20 mm footprint suits 4020 mount points
  • 16 W draw keeps power budget low

Compact 40 mm axial fan

The Vszerda THA0412AD is a 40x40x20 mm axial cooling fan designed for equipment that requires a 12 V DC supply. It delivers 20.6 CFM airflow at 5.16 W while drawing 0.60 A through a four-pin connector.

Suited for tight enclosures

This fan suits builders who need a low-profile 40 mm replacement with PWM-capable four-wire control. It is not for systems that demand larger frame sizes, higher static pressure, or voltage ratings other than 12 V.

Straightforward four-pin swap

Installation consists of aligning the standard 40 mm mounting holes and plugging the keyed four-pin header into the matching socket. The most common issue is reversed polarity or an obstructed intake that cuts airflow below the rated 20.6 CFM.

Highlights

  • Axial design moves 20.6 CFM through tight spaces
  • 12 V DC input fits standard 12 V rails
  • 4-pin PWM header enables precise speed control
  • 40 × 40 × 20 mm footprint suits 4020 mount points
  • 16 W draw keeps power budget low

Specifications

No published specifications for this item yet.

Questions about this item

What power supply do I need to run the 12V 0.60A fan?

A DC 12V source capable of at least 0.60A, such as a standard PC 12V rail or a 12V AC adapter rated for 1A or more.

Will the 4-pin connector fit a 3-pin motherboard header?

Yes, the 4-pin plug fits a 3-pin header; the fourth wire for PWM control simply remains unused and the fan runs at full speed.

How can I confirm the fan is delivering its rated 20.6CFM after installation?

Check that the tachometer signal reports a steady RPM in BIOS or monitoring software and feel strong, consistent airflow from the 40x40mm frame.

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