I am trying to buy the most reliable case fan known to man. The Fans noise level can be as loud as it wants. The fan has to have good enough airflow. The fan has to last a long time. Those are really the only requirements. As far as size.. probably the most common sizes whatever that happens to be. Size is not really important to me. But if I was forced to pick a size, I would have to pick the most common as of right now. Which seems to be: 120mm, 140mm, and 80mm seem to be the most common types as of right now.

A good example, and I don't want people to dwell on this very much, is enterprise. What type of fans does enterprise use? I know IBM sometimes uses a company called Delta.

  • Note: Enterprise kit would not necessarily always last longer, and rack-based systems differ from traditional server chassis and finally they usually do not consider noise a factor. So apart from wanting a long lasting fan, what other factors/criteria do we need to consider?
    – CJM
    Commented Feb 18, 2019 at 18:36
  • As written, this question is outside the scope of this site. Instead of asking what bearing type is the most reliable, ask for the most reliable fan instead. Please edit your question to include the size and any other requirements/wants that you may have.
    – Cfinley
    Commented Feb 19, 2019 at 14:48
  • Thank you both for your comments/feedback, I appreciate it.
    – Jeff Luyet
    Commented Feb 20, 2019 at 14:08
  • Don't just re-ask your question because it was closed. You've already been given advice here on how to get this one reopened. I've merged your re-asked duplicate into this one.
    – ArtOfCode
    Commented Feb 21, 2019 at 23:43

1 Answer 1


For the consumer side I would recommend a Noctua industrial series fan. I can't say much about the enterprise products as I am not familiar with them.


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