I have one (bought March 03) and the buzzing annoys me so much that I don't turn it down below 9V or so. I saw the buzzing mentioned in a few reviews but didn't think it would be a big deal... but listen, folks:
If you are the type who considers noise level important to very important, you will not be satisfied with this product. If you think a 35-40dBA fan is no problem, you won't notice it. But if you're the type who uses L1As and prefer passive cooling whenever possible, etc., then stay away from this thing. Too bad, too, because it looks great and seems like a good product otherwise.
And while I'm at it, I bought the Vantec AeroFlow because reviews said it was quiet... it is quiet, but makes a high-pitched whine...

another "almost-great" product... has anyone tried any other TMD fans besides the Vantec? I'm wondering if they all whine or just mine.
And ya, what *does* YMMV mean?