Replacement 40 x 20 mm, 5V Fan for 3Com Baseline Switch 2928-SFP Plus

The fan on the above switch was on its last leg.  The Fan dimensions are 40x40x20mm. It is a 5V fan.

I am looking for a replacement. The photos allow anyone with a similar fan to comment and suggest a replacement.

I am considering the Noctua NF-A4x20 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x20mm, Brown) and would appreciate if anyone could confirm whether they have managed to get this model to work and what how they paired the wires of the Noctua to the red, white and black wires of the 3Com fan.

If anyone has used another brand please share model and link. Important that the fan is quite and good quality.

And if you're curious about what a dying 40 x 40 x 20 mm fan sound like, click below

Information about the unit

The Failing Fan

Model: EFB0405MD

Manufacturer: Delta Electronics Inc.

The Mainboard / Power

The Fan Connector / Motherboard


Motherboard w/Plug (Clip side)

The Fan Connector

Follow This, That and (Maybe), the Other:


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