Pros: - On low settings this thing is completely quiet, and I don't mean mouse footstep quiet I mean alone in an empty house and night with goosebumps quiet. - When you pump it up to 100% it becomes whisper quiet and that's with the computer right next to your face. Throw this puppy on the floor and it'll sound the most silent muffled fart you ever slid out in a public place.

Cons: - The only con related to these fans is that you can only fit so many inside of one case.

Overall Review: I really wish that Boeing would look into these fans clever designs. If they were to make helicopter blades in the same fashion as these quiet computer fans, we'd all get more sleep.

Pros: - It adapted my 92mm fan hole to a 120mm fan brilliantly. - My case is very stylish with what looks to be like a giant protruding cone of death extending of the rear of the case.

Cons: - Hardware didn't fit either my fan or my case

Overall Review: - The engineer who designed this thing should be working at NASA, a thing of beauty such as this should not go without merit. - I had to go pick up some of my own hardware to make this work, but hey at 7 cents a screw who can complain.