it is silent? Is 4" or 6"?
183891
I am not sure, but do not waist your money on this fan. The plastic is so light it just spins around on my desk. Buy the metal one.
183892
It's a 4" fan, and it isn't completely quiet. It makes a sort of 'white noise' kind of thing. Not very problematic, unless you're looking for total silence. It is definitely not a problem for me, and I have it right next to me on a nightstand.
183893
a pic is posted at i.imgur.com/npsm7Ek.jpgthat will give you a perspective. not the greatest pic, but it should do the trick.
183894
It is basically 4.5 inches across the entire fan. The actual blades are a bit smaller, the the grill is basically 4.5 inches.
183895
It is not silent, but is very quiet. The fan itself is 5", the blades are 4" in diameter.
37279
Not much more than 4 feet. it is kind of loud and does not retract all that friendly
1526642
According to their spec sheet, (available at http://www.quietwalk.com/images/quietwalk_specsheet.pdf) it is 0.125"
1158238
Yes very quietly ... A little click when it shuts off. You can't hear any noise when it's running .
354479
It is quiet, but you can hear it running. It might be a distraction if used intermittently in a home theater environment. I have no way of measuring actual decibels.
705064
It is so quiet that I have never even heard the unit. Although I have had mine for just a short time, there is only one way to describe it, " I Love it, love it, love it". I looked for months before picking this one. Had them update the ram from 16GB to 32GB before I got it. I have no regrets about purchasing this one.
625017
It's quiet. No noise that I could hear. The only issue I've had is that I sometimes get blacked out images
286567
It is almost completely silent. You would have to hold it up to your ear to hear it.
303771
It is quiet to me. Just a light fan noise. It is easy to forget that it is on.
1504953
From the best of my recollection it is approximately 4" to 4.5". It was pretty substantial and worth the price.
974865
Its very quiet. I have it in my living room next to my DVD amp etc..you cannot tell it is on.
1051214
It's very quiet. Not at all noisy. My daughter forgets it is on because you can't really hear it.
131550
It's at school at the moment, so I can check for sure tomorrow, but I think it is about 6".
545337
I am 6'3", 240 and this thing is quiet as a mouse when I'm using it. No noise whatsoever.
1231506
Its abour 4.5 inches. Dont buy it though. It fell apart very quickly. Cheap chineese junk
444194
The fan is 4" in diameter; overall including cage is 6". It is quiet and the air is good enough for taking heat away from my and three phone adapters ganged together inside a cabinet.
51009
Actually, no. It's quiet silent. I was surprised to hear it. I thought it would be way more noisy.