Pros: Since the Antec Three Hundred has a 140mm fan on top this is a great replacement. The included Antec Tri-Cool fans are very noisy when compared to this fan. This fan moves about as much as the Tri-Cool on med, but is almost dead silent. I found that rubber washers did make it dead silent. One of the better cooling options for this case. It is also thinner than the orginal Tri-Cool fan so larger CPU fansinks have a bit more clearance with this fan.

Cons: While the 140mm fan fits in place of the 140mm fan mount on the Antec Three Hundred, the screw holes dont match up. This fan was meant to the installed in a 120mm slot (I know that sounds odd, but thats the case here) so you have to force start the screws for any 140mm fan slot. Then again, 140mm fan slots are pretty rare so I dont know if this is reall a con or not. You decide. The fan blades are very delicate, so be careful with them. Also, no natural ability to trun off LED's. I had to cut a wire running to each LED to disable them. Dont cut both as they are wired in series to the fan motor and it will kill the fan. Just one wire per LED.

Overall Review: The option of a non LED version of the fan would be nice. The 140mm to 120mm adaptor looks a bit on the thick side of things and may prevent installing in some cases. I didnt use it as it was a direct replacement for another 140mm fan. Side note here. Most fans need to be designed for upside down use or the bearings may wear out way to fast. This fan simply may not make it long term in the manner I'm using it, but it's been a real champ the past couple of months and will be worht another one if I need ot replace it after a year or more. Again, a must have for Antec Three Hundred case owners. Dont forget some rubber washers which you can find at your local hardware store for a few cents at most. Hope this review helps somebody.

Pros: great fan moves alot of air and is quiet cool shinny blades and wicked nice blue LEDs

Cons: None

Pros: True 140mm fan, you don't need the adapter if your case has holes for 140mm fans. LEDs not real bright and makes a nice design on side of my Cooler Master 690 case. Quiet and moves air.

Cons: $15 bucks but looks nice.

Overall Review: Bought one to try it out, I will get 3 more for the side and top of case.

Pros: Quiet at full speed and the black surround with the blue LED is not overpowering. The Silver blades look sweet as well.

Cons: none

Overall Review: I replaced the intake fan for my Armor+ case and added one of these to the top as an additional exaust fan. At full power you can still barely hear them and they are moving a fair amount of air. The blue LED's are a bit more subtle than those with a clear fan surround and I like that.

Pros: I ordered 4 and all of them work. Blue lights and fans run.

Cons: Just watch the cables. If anything gets in the fan blades they will not spin up. Not very much torque.

Overall Review: None great for the price.

Pros: Moves the air in my computer, two of these really takes a lot of strain off my V8. Lights are pretty as well.

Cons: None so far! Although the directions could have been slightly clearer.

Pros: Doesn't suck. Blue LEDs.

Cons: A bit flimsy, doesn't move too much air for its size. LEDs arent too bright.

Overall Review: Bought this as an internal hdd cooling fan. Replaced it with a CoolerMaster R4 69CFM/19dBA 120mm fan, which does work a lot better than this one. I will probably stick to Scythe/Delta/CM from now on. Sorry AeroCool.

Pros: This thing moves a lot of air, even running at about 1K RPM, and it's silent at that speed as well. LED works. Fan is great for the ceiling slot on the Antec Three Hundred.

Cons: None.

Overall Review: Great buy for those who want an LED on top of their Antec 300, or for anyone who wants a 140mm fan in a 120mm slot (comes with adapter). LED, as with most LED fans, is very bright.