Pros: this fan is a hoss on a megahalems or similar cooler in a push/pull configuration. it achieves the pressure that is pretty much just for 35mm deep fans being at only 25mm deep.

Cons: the one pulling makes a winding noise when fully powered not worth a neg egg just a heads up.

Overall Review: its interesting that cooler master actually got fairly close to the specs on this fan vs their R4 fans and others that are pretty aweful gauge. it does the rated pressure it says but is about 2 dba louder then stated on specs.

Pros: And what you're paying for is the best water cooling fan on the market. High static pressure 3.7mm/h20, fairly quiet when using the PWM function to reign in the Rpm's to an acceptable level, and can be disassembled for easy maintenance.

Cons: Not in a square frame...If you're a stickler for sealing up the connections to your rads, small gaps are left when not using some type of gasket...Some type of (sticky backed) foam is what I'd recommend. Can get kinda noisy @ max rpm's.

Overall Review: If Corsair's sp120 was a PWM fan in may be in the same league, but alas....'tis not Not a purchase you will regret...

Pros: Extremely high quality fan all-around! Technologically advanced barometric ball bearing fan. Triangular-tipped and removable blades. Three-piece metal and plastic frame, with honeycomb ventilation. Looks incredible! Fantastic bonuses also provided: Four silicone 'silent' fan screws, and typical metal fan screws. Four rubber washers (with sticky back). 4-pin to 3-pin power adapter. 3-pin to Molex power adapter.

Cons: Possibly very loud (when on high, or not used with 4-pin PWM connection, much louder than deceitful 30 dBA rating). Possibly expensive (without sale or rebate).

Overall Review: I was in a bit of a panic when I plugged this in via Molex cable (using the provided 3-pin and Molex adapters). The Excalibur will be ridiculously loud (50+ dBA?) if you don't have a 4-pin PWM motherboard fan connector, or your case is warm, or it decides to run on high for whatever reason. I now have it plugged in properly (4-pin PWM) and it's running rather silently (at 1200 RPM).

Pros: - Powerful fans, moves a lot of air. - PWM controllable. - Newer barometric ball bearing technology (magnetic), supposedly less friction and longer lifespan. - Braided cable. - Rubber fan mounts included with accessories.

Cons: I ordered six fans in total, one fan package arrived without the accessories (screws, fan mounts, cable adapter).

Overall Review: A few things about fan noise: - Everyone's definition of a "noisy fan" or a "quiet fan" is different. - Noise level will obviously vary with the fan speed on any fan; more airflow = more noise. I'd say I have a higher tolerance for noise and since I use these with a fan controller, they're not spinning at the highest speed (and loudest setting) so I find them to be a nice balance between noise level and airflow. Here's a list of types of fans from best (typically longest life & least noise) to cheapest (typically shortest life & most noise): 1. Magnetic bearings - Best (this fan) 2. Fluid bearings 3. Ball bearings 4. Rifle bearings 5. Sleeve bearings - Worst I made the mistake of buying the cheaper fans you see here at Newegg for three or four dollars and some started making noise within a few months (loud, rrrrr-ing sound during start-up).

Pros: High air flow, mounts horizontally/vertically, lots of adapters, removable blades, aesthetics (black w/o silly lights), PWM, relatively inexpensive.

Cons: Loud at high speeds, but still moves a lot of air and quiets down with a controller as mentioned previously. The blade assembly is somewhat difficult to remove and it's very easy to draw blood when it lets go via the sharp plastic cutting fingers, break a fin or, in my case. Oops!

Overall Review: I'm relatively ...nimble and even after cutting myself once when removing the blades, managed to do it again. For future revisions, may I suggest the finger "guards" be dulled rather than serrated and that the blade assembly be made easier to remove? Admittedly, I didn't R.T.F.M . before attempting to clean 'em, so five eggs just the same as I'm sure it wasn't a trap despite it taking a bite out of me twice. Wield excalibur with care when removing the blades or just use a toothbrush as with other fans.

Pros: not load like other say. these are quite! sure there are quiter fans, however these out perform them. look at the specs and compare them....these win! great cpu cooler fan.

Cons: I thought the cable length was too long....go figure. most are not long enough. ...these I had to wrap around and seriously plan on how to route them. no big issue really, just sayin

Overall Review: comparing cpu 120mm fans to others, these are the best. I did my homework. saving you the time, just buy for cpu cooler!!

Pros: These fans move the air when you need them to...They last well and I have 6 of these fans running in my gaming pc's and have had no issues at all.. I do use fan controllers on all fans in my gaming pc's to limit the rpm's.I'm sure if you just plug these fans in and run them at 2000rpm's thet are loud like anyother performance fan is.I have not had this issue at all and my fans only run as loud as I let them. Don't let bad reviews that must be from people running these fans at max rpm keep you from ordering one of the best fans I have used to date.I have fans that are louder and were higher in price and move less air at higher rpm's.. These are good fans and they do the job I ordered them to do(cool my pc's off)....

Cons: I have had no cons with this fan...I use fan controllers in all my pc's and this fan is not loud at all running around 1200 to 1500 rpm's..

Overall Review: You will need to use a good fan controller with high performance fans to limit the rpm's in any pc you build or upgrade. If people are haveing issues with this fan being loud, then they must be let running them at max or near max rpm's. This fan moves more air at lower rpm's than most fans I have used and I have used alot of fans over the years of building my own gaming pc's.. I have had better performance with coolermaster fans than anyother fan I have ordered.This fan is like all coolermaster fans, it works well and it last for years..

Pros: Metal housing, PWN, good bearings, Pushes like a truck. This fan comes with all the wires and adapters and mounting bits you will need. Whats more it's all high quality. This fan can really move air, the pwm allows it a great amount of control. NO LEDS!

Cons: Can be loud at 80% or above, but worth the noise to keep my gaming rig stable.

Overall Review: I really love these fans, replaced all the fans in my case with these, and temps are down all around. These fans might seem expensive but they are worth the extra coin for sure.