Pros: Fan is quiet and cheap.

Cons: NewEgg lists the CFM at 37.8. This is incorrect. Masscool lists the following specs on their site: Rated Voltage: 12VDC Rated speed: 2,700 RPM +/-10% Rated power: 1.8 W Noise level: 26.5 dBA Air flow: 32.95 CFM at 2,700 RPM Current: 0.15 A Since I had specifically purchased this to replace two old exhaust fans because of the high CFM, finding that they are only 33 CFM is a disappointment.

Overall Review: In the future, I will make sure to check the manuf. site before finalizing my purchase.

Pros: I'm running 3 of these on my case, two intake, and one exhaust, and they blow a lot of air and aren't that loud.

Cons: None

Overall Review: Great fans, and cheap

Pros: Cheap, blows a lot of air, and it quiet.

Cons: none

Overall Review: I was actually impressed by how much air this 80mm fan blows. I think it actually puts out more air than the 3 larger case fans that came with my case.

Pros: They move some air, they feel sturdy, and the wiring is shielded so they dont get melted or cut by fans, nice

Cons: I hear the wining but they do thier job well, so I wont complain

Overall Review: I have a stock heat sink on my old E6600, the fan died, so I just attached an 80mm fan to it. The fan I was using was old, and kept the temps at around 45c idle, with the new fan, I'm running at 36c idle, and 45-50c under load, before i was hitting 60c, BTW it's OC'd to 3ghz too, nice improvement,

Comments: I bought 10 of these for the discounted price and put 2 of them into a custom build that I was doing. They definitely kept the air flowing. The 2700 is not true, I have one running close to 2800 and one much closer to 3100. The 3100 is a little loud, but not that bad (I would guess around 31 db). The screws did not seem to work that well for all of the fans (not sure if screw or hole on fan issue). Overall, great fans for the price.

Pros: Inexpensive Move a decent amount of air No LED's

Cons: 4-pin legacy connector isn't a separate piece.

Overall Review: These fans are quiet and move a nice amount of air. The wires are wrapped, which is a plus. The legacy connector isn't a separate part, though, so if you're using them with the motherboard sysfan pins you'll either have to leave them dangle or cut the wrapping to remove them.

Pros: It's a fan. It moves enough air. It's not too noisy.

Cons: It's a little noisy on full speed.

Pros: Inexpensive, 3 and 4 pin connectors, long cord

Cons: none

Overall Review: worth the price