Pros: - None

Cons: - 2 of the 6 broke just after 30 days from purchase

Other Thoughts: These fans worked OK for awhile, but one started making noises about 20 days in, so I unplugged it. I should have returned it, but one fan isn't a big deal. Now a second one is making noises. If stopped and/or cleaned, it makes no difference. It starts making the noise within a few minutes of being restarted. These are absolute garbage.

Pros: I bought these fans to go with an AIO I bought from enermax and bought 4 and I am sold on these. they move air more than any fan on the market. and at such a great price i filled my case with them. At there full 1800rpm speed they have a little noise to them but it is mostly wind noise and when on a radiator they are dead silent. and i had 1 fan that had a slight noise and emailed there tech support and had a new fan the next day no questions asked. I was shocked on the delivery of it.

Cons: wish they came in 140mm sizes. and maybe rubber mounts on the corners. really nothing to complain about. switch placement on rear of hub cant be accessed once fan is installed on a radiator.

Pros: Quite and pushes some nice air flow through rads
Black with a nice look to them.
Not cheap looking.

Cons: Not really a con at all but can get a little loud when ramped up but thats any fan. but thats like maxed out. and they NEVER get like that on their own. more my mobo fault at start up.

Other Thoughts: I got these to push more air through my Corsair H105 as it has a thicker rad than most aio coolers.

Did the trick pretty well for not much $$$

Pros: - Quiet at medium speeds
- Moves a lot of air through a heatsink
- No LEDs

Cons: - Came with rubber connectors instead of real screws

Other Thoughts: I'm using this as a single fan on a cooler master 212 EVO+ heatsink. At medium speeds, it's quieter and cools more than the fan I previously had on it (a high speed cooler master sleeve bearing fan). I'll need to look into increasing my overclock now..

The specs and price compared to similar fans from other companies is what sold me. It's working great, and I'm only sad that I don't have any other fans in the same class to compare it to.

Pros: 1. Those fans honestly move a LOT of air.
2. Good pressure
3. Not loud,,,,, surprisingly.
4. cheap ish
5. build in 3 speed variable speed.
6. sleeved 4pin connector.

Cons: 1. NOT 80CFM as advertised.
2. NOT 25 Dba
3. moves a lot of air and isn't loud, BUT no where close to 80/25

Other Thoughts: A lot of air is directed outwards.
so a fan shroud would work well here.
Moves the same amount of air as my Cooler Master Blade Master 120, but has more pressure and is quieter