Pros: very high airflow (110cfm on high), quality construction, comes with fan controller to slow it down.

Cons: Can get very loud with 5 in my case, but there is a cure...

Overall Review: Most hardware stores stock rubber grommets. Buy 4 grommets per fan to fit the screw size, and buy the thin grommets. The grommets will isolate the fan from the case, and space it about 1/16th of an inch away from the case metal. This seems to reduce noise significantly! With 5 fans at full speed, noise level dropped dramatically.

Pros: This baby moves more wind than an office full of people after a burrito luncheon. Rheostats are good.

Cons: The rheostat knob sticks out too far to close the door on my Sonata II case. I had to bend some tabs to tuck the assembly in a bit further. Makes my case sound like a JET when it's cranked up. You can hear the computer from 30' away, up a flight of stairs. But I suppose moving a lot of air and noise are bound to go hand in hand.

Overall Review: The rhoestat control doesn't seem too linear with the fan speed. It seems you have to turn it up a certain amount before you hear the fan kick up a notch, but at least it works. I bought this fan to replace the Antec Tri-Cool that came with my case to get some air really flowing in hopes of dropping temps a bit. I guess I'm a little disappointed, as it really didn't affect the temps much. Maybe a couple *'s. Even on full blast. (LOUD) It probably creates too much turbulance in the case. In conjunction, I also tried remounting the Antec fan for the intake. That didn't do a thing. I think the mount location behind the HD's is too deep within the case to be effective. Might help multiple drives stay cooler, but I only have 1. However, I bet if you use this fan for a CPU cooler (Big Typhoon or what not) It would really shine. I guess I'll keep experimenting with my case to see if I can rig it for optimum air flow.

Pros: I can't believe how long these fans last. Cranking lots of air since 10/14/2006. WOW! I have bought other fans that didn't last a year that start clicking and clacking that cost $9.00 You get what you pay for. Expensive, but they last over a decade...

Cons: Can be a bit loud, but that is because it is pushing LOTS of air. Just get a fan controller. Recommend getting "NZXT SEN-MIX2 Sentry Mix 2 Fan Controller"

Pros: No lame LEDs, moves a ton of air, pretty quite for it's size and the amount of air it moves.

Cons: Fan controller is a joke. Ugly and cheesy are the only words for it. Gave it a 4 instead of a 5 only because of the controller. The fan by itself is worth a 5.

Overall Review: I'm not 16 with a honda civic and 18 foot wing on the back. So I was pretty pleased to find a decent fan without LEDs built in. Fan controller is junk. Will work fine without the controller but it'll be on high all the time. Since I have a quite case and am using this to cool a x1900xt that's fine with me.

Pros: Great Replacement for TT120 Fan Moves more air than stock (2000rpm stock Tuniq vs 2400rpm FM121) Variable speed controller.(Mandatory for my use!) Plenty of length on speed controller wiring.

Cons: Can get loud. But when gaming the 5.1 speakers are up anyway. Of course I only crank it when under heavy load. Short connector lead for speed controller on the fan. Silly to use a Floppy bracket to mount controller. Should offer a 5.25' bay bracket.

Overall Review: Used this to replace the stock tuniq TT120 fan that was dying. Couldnt use the the Tuniq's PCI bracket controller. So I yoinked the pot from the FM121 and mounted it in the Tuniq's bracket. Results seem better than stock fan. 4.2GHz OC'd C2D 8G mem. GTX 280 38 Idle 53 max prime95

Pros: this fan does its job and does it well

Cons: loud, but in return you get maximum cooling!

Overall Review: please attach the modulator--without it, your fan will sound like a blow drier. I'll need to cut out the built-in grill on the back of my computer and replace it with the grill that came with the fan (to keep the noise down). Anything in front/back of the fan at close proximity will cause even more noise.

Pros: - Amazing ability to move air - Awfully efficient for as powerful as it is. - Equipped with a control knob

Cons: Control knob installs to floppy slot, which my case is limited to one. Fan defaults to highest setting if control knob is not plugged in.

Overall Review: Installing two of these (one of which was not controlled by a knob) brought my motherboard temperature down nearly 8C. Turning up the controlled knob during load brought my motherboard temperature down an additional 5C.

Pros: These fans are by far the best I have used in my 15 + yrs of computer building. They are quiet at low speeds and at full speed are noticeably quieter at high speed than any other fan that comes close to this CFM. The quality of both the controller and fan are excellent, I have not had one fail on me.

Cons: The fan itself does not come in black.

Overall Review: if you have a 120mm opening in your case this fan is the one to get, one of these will do the work of up to three standard 120mm fans.