Reviewed by Culbrelai from Brownstown, MI on 01/28/13
These are very high quality, you can tell when you pick them up. They come with screws, just an FYI.
I bought three to add to the cooling in my Cosmos II. One of them I have on the roof of my case for exhaust (Along with 2 other different fans) and it seems to do real well.
Two of the three make this really high pitched whine, that I cannot replicate on the fan that works quietly.
I plugged them into my mobo first via the 3 pin connector. Turned the computer on and immediately the high pitched whine could be heard, scared the crap out of me so I turned off the computer... went back and plugged them both into the Cosmos IIs fan controller, which my quieter fan from this same batch, of the same model, is plugged into and has no such noise. Again, even on the lowest setting for my CM Cosmos IIs fan controller,, the two whiney fans continue to whine.
On the highest setting for the fan controller, the other non-whineing fan doesn't whine at all. So I don't know what could be wrong.
Overall pretty good, I probably just got two crappy ones.
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