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

SXDOOL

SXDOOL MB40101V2-000U-G99 40mm 12V 5800 RPM 3-Pin case fan

SKU CH-G3GT-YMV0M MPN MB40101V2-000U-G99

A 40 mm magnetic-bearing case fan delivering 7 CFM at 5800 RPM on a 12 V 3-pin connector

  • Compact 40 mm frame fits tight chassis spaces
  • Magnetic bearing reduces friction for longer life
  • 5800 RPM delivers 7 CFM airflow for focused cooling
  • 12 V 3-pin power connects directly to motherboard headers
  • New condition ensures full factory performance out of the box

SXDOOL 40 mm Magnetic Bearing Fan

This SXDOOL MB40101V2-000U-G99 is a 40 mm case fan built for compact enclosures and targeted component cooling. It runs on 12 V power through a standard 3-pin connector and spins at up to 5800 RPM using a magnetic bearing design. The unit delivers a maximum airflow of 7 CFM and measures 10 mm thick. It suits builders who need a small, direct-drive fan for tight spaces.

Suits tight 40 mm mounts.

The fan fits chassis or heatsinks that only accept a 40 mm frame and a 3-pin header. It is not for builds that need higher airflow, lower noise levels or PWM speed control, and it cannot fill larger fan mounts such as 80 mm or greater. Buyers who require substantially more air movement or a four-wire control interface should consider a different specification.

3-pin 12 V magnetic bearing at 5800 RPM

The single specification that decides fit is the 3-pin 12 V connection combined with a magnetic bearing rated for 5800 RPM. This determines whether the fan will plug into the available header, receive the correct voltage and meet the speed target for the intended cooling task. Verify the header type and voltage before purchase.

How it compares

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Price $5.99
Cheaper than about 95% 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

Does my motherboard need a 12 V 3-pin header to run the 5800 RPM fan?

Yes, the fan draws 12 V through a standard 3-pin connector, so a matching motherboard header or fan controller is required.

Will the 40 mm magnetic-bearing unit fit in the same mounting holes as my old 40 mm sleeve-bearing fan?

Both use the industry-standard 40 mm square frame, so the four corner screw holes line up identically.

How can I confirm the fan is spinning at the rated 5800 RPM after installation?

Check the RPM reading in BIOS or a hardware-monitoring utility; it should report close to 5800 RPM under full voltage.

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