Pros: Inexpensive compared to other really quiet mfg. Flows great air,quiet and that is good as I hate the sound of fans.

Cons: none

Overall Review: If you want silent fans that move good air then these are them,I have no glass door so you can't see the color but even if I did I think they would add pizzazz . I read other reviews that say they go bad if laid flat (Horizontal) so I would assume that to be true but great anywhere else.

Pros: Very quiet operation, good air-flow, supplied with 3 - 4 pin adapters.

Cons: Past on-line reports of horizontal mounting problems (noise) - apparently resolved.

Overall Review: Added four intake fans to my Antec P280 to ensure good air-flow. I was going to replace the top two exhaust fans as well, but read reviews that Cougar fans are not for horizontal mounting. I called Cougar, and was informed by their customer service that the horizontal mounting issues were resolved, and that newer stock fans were fine for horizontal installations. Since my stock Antec fans were quiet enough - I left them in place.

Pros: Good CFM Nice construction and aesthetics. Keeps my cpu cool (31 C) with a single fan pull config on a 120mm black ice stealth radiator (XSPC Raystorm Waterblock).

Cons: It is quiet as far as normal fan noise, but it ticks. It is really hard to explain, I cant hear a fan motor, just a constant... tick tick tick tick tick. I have this fan set up pulling air through my 120mm radiator. My PC is very quiet, so on a normal non water cooled PC, this may not be audible. All I hear in my system is air flowing, and the ticking noise.

Overall Review: I may have just got the lemon, I would still recommend this fan. I would have to buy another to know if my fan is defective or if they all emit the ticking sound.

Pros: Extreme quite fan. Heck I can't even hear it. OR the four I bought for my H100 Corsair cooler. 17db. Pushes alot of air. 60ish CFM's.

Cons: None. I should have bought more. lol

Overall Review: I have four of these in a push pull config on my Corsair H100 water cooler. Can't hear them. I bypassed the Corsair fan controller and have these running straight and at full speed from power supply. Awesome!

Pros: -high quality materials. -fluid dynamic bearing -quiet even at full speed. quietest fan I've ever had.

Cons: -not pwm -sometimes I like to stick my fingers in pc fans. you can't do that with this one the blades are strong and it will hurt you.

Overall Review: got a mounting bracket to put in the DVD tray. blows air straight towards cpu and gpu. using included 3 pin to molex adapter

Pros: Crazy quiet

Cons: Price

Overall Review: I bought this to replace a top mounted case fan that was starting to get too loud. I had to check that this was actually plugged into the motherboard because it's so quiet. I'm considering replacing all case fans with these!

Pros: 1. Excellent quality 2. Uniquely designed pads dampen noise and they really work! 3. Long lasting 4. Comes with 4 rubber pins if you'd like to use those instead of the screws. 5. Nice coloring scheme

Cons: 1. The only thing I can tell you personally is you want to avoid the PWM fans at all costs unless you like hearing low frequency whining all the time, they are terrible. 2. Are these loud? Not really just use an inline resistor with 5v or 7v and it'll be perfectly quiet. All fans require one if you want silence period otherwise they run around 1000 rpms or 1200rpms (all fans) at 12v and it can drive you insane having 4 of those.

Overall Review: A few manufacturers take their work seriously, Cougar is one of them. The fans are absolute works of art and better than anything price/cost ratio-wise. I am completely impressed by their accessories which include a connector 3pin - molex, and the rubber pins. A must buy if you're building a new PC definitely!

Pros: Super quiet, perfect replacement fan for my Cooler Master liquid cooling system. Fit like a glove and actually keeps the tem cooler than the stock fan ever thought of. 32 degrees celsius idle, and 38 degrees Celsius under load.

Cons: None so far.

Overall Review: I would highly recommend this fan whether you're looking for airflow, or a replacement for a liquid cooling system radiator.