Noctua NF-A14 FLX, Premium Quiet Fan, 3-Pin (140mm, Brown)

Had more vibration than I expected. Airflow is good.

Really good--nearly silent.

I use this on my lancool k62 dragon lord case under my blu ray drive and it works really well.

Glad I bought these fans! lots of cooling with no noise.

Replaced the rear fan in the case with it just for maximum quiet. Works great...very quiet.

Really cool fans no puns intended, but the fans a real quick once you restart or turn on your PC Ill buy i again and recommend to a friend.

Was pleasantly surprised they do not radiate a brown color.

My case (NZXT Phantom 410) is loaded with 8 fans, all of which are 120mm Noctua fans with the exception being the single 140mm fan on the side of the case. The voltage at low speed is not enough to start the 140mm and I have to turn the fan speed up to medium for it to get going, then I can turn it back to low. Rigged with a Cooler Master Silent Pro PSU and a Corsair H100i, my computer runs almost completely silent with the case fans on on low. When cranked up to medium or high, all of the 120mm have a noticeably increased wind noise, but it is not a bother because it is expected noise when they are pushing more air. With this 140mm fan though, as soon as it hits medium speed it really begins chopping the air and you can hear the air buzzing because of it. The fan itself is dead quiet and does move air-a-plenty, but doesnt seem to move the air as smoothly or quietly as the 120mm.

These fans are of the highest quality, Very silent at 5v, but can get noisy at full blast cause they move a lot of air, but not cause they are loud per se.

Very quiet. Case runs significantly cooler than with stock fan. Very high quality look and feel. Would purchase again.