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

Sunon

Sunon HA40101V4-0000-C99 40mm case fan 4500 RPM 18.2 dBA Vapo Bearing 3 Pin

SKU CH-WQJV-43HCD MPN HA40101V4-0000-C99

A 40 mm case fan spinning at 4500 RPM with a Vapo bearing, delivering 5.3 CFM at just 18.2 dBA over a 3-pin connector

  • TypeCase Fan
  • Fan Size40mm
  • Bearing TypeVapo Bearing
  • RPM4500 RPM
  • Air Flow5.3
  • Noise Level18.2 dBA
  • Vapo bearing extends fan lifespan and reduces friction
  • 2 dBA noise level keeps systems whisper-quiet
  • 4500 RPM delivers 5.3 CFM airflow for tight spaces
  • 40 mm square frame fits compact enclosures and networking gear
  • 3-pin 12 VDC connector supports wide 4.5–13.2 V range

Compact 40mm Cooling Fan

The Sunon HA40101V4-0000-C99 is a 40mm case fan built for tight enclosures and small-form-factor systems. It suits builders who need targeted airflow in spaces where larger fans cannot fit, such as mini-ITX chassis or networking gear.

Three-Pin Voltage Control Limits

The fan connects via a standard three-pin header, so speed is regulated by varying the supply voltage between 4.5 and 13.2 VDC. Without a fourth PWM wire, the motherboard cannot send a dedicated duty-cycle signal, limiting automatic speed curves to voltage-based control only.

Low-Noise Airflow for Confined Spaces

At 4500 RPM the fan delivers 5.3 CFM while producing just 18.2 dBA, a level barely audible at close range. The Vapo bearing and 0.8 W power draw keep it running cool in cramped layouts, but the modest 1.524 mmH₂O static pressure means it struggles against dense heatsink fins or restrictive filters.

Høydepunkter

  • Vapo bearing extends fan lifespan and reduces friction
  • 2 dBA noise level keeps systems whisper-quiet
  • 4500 RPM delivers 5.3 CFM airflow for tight spaces
  • 40 mm square frame fits compact enclosures and networking gear
  • 3-pin 12 VDC connector supports wide 4.5–13.2 V range

Spesifikasjoner

BrandSUNON
ModelHA40101V4-0000-C99
TypeCase Fan
Fan Size40mm
Bearing TypeVapo Bearing
RPM4500 RPM
Air Flow5.3
Noise Level18.2 dBA
Power Connector3 Pin
ColorBlack
FeaturesRated Voltage: 12 VDC
Operating Voltage Range: 4.5 - 13.2 VDC
Input Current: 0.066A
Input Power: 0.8W
Maximum Air Pressure: 0.06 inH2O or 1.524 mmH2O
The HA40101V4-0000-C99 comes from the Sunon Super Silence family of fans which includes 40mm, 60mm, 80mm, and 120mm square DC fan models. This is absolutely one of the quietest 40x40x10mm fans in the world and it is made by Sunon who is well known for their premium quality cooling fans and OEM parts made for top tier electronic and computer brand names all over the world. At 4500 RPM, this fan only makes 18.2 dBA which is barely audible
Dimensions1.57" x 1.57" x 0.39" (W x D x H)
Fraktvekt0.02 kg
Pakkestørrelse135 × 112 × 29 mm

Spørsmål om denne varen

How does the 4500 RPM speed translate to actual airflow and noise in a build?

At 4500 RPM the fan moves 5.3 CFM of air while producing only 18.2 dBA, making it one of the quietest 40mm options available.

What does the 3‑pin connector mean for speed control and motherboard compatibility?

The 3‑pin connector provides power and tachometer feedback; speed is adjusted by varying the supply voltage between 4.5 and 13.2 VDC.

Which version of this 40mm fan should I choose if I need the lowest noise?

This single model runs at 4500 RPM with an 18.2 dBA rating, delivering 5.3 CFM airflow and 1.524 mmH₂O static pressure.

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