Summary: The noise level of these fans was absurd. It went from me barely being able to hear my computer from the other side of my room, to now I can hear it down the hall through my door. I made sure it wasn't a lose mounting, tried different areas in the case, etc. Nothing helped.
Pros: -Push a lot of air through the case -Red LEDs look nice -Comes with 3-pin to Molex adapter (I didn't need it but other may)
Summary: I have owned 6 sickleflows and 3 of them died after a few months which I found out is because of the bearing type (Sleeve Bearing). These fans MUST not be mounted horizontally as it will cause the shaft to rub against its housing (top/bottom of case).
Pros: Quite cheap for the performance Moves a ton of air thru filters or Radiators Multiple colors to match your case design
Cons: If mounted horizontally fan will die quicker as it's a sleeve bearing fan Quite loud at 100% with multiple fans No fan dampening-it's a cheap fan so it's expected
Summary: I'm using the 3 to 4-pin adapter to go into my fan controller. On the highest setting the fan has the usual "whoosh" sound you would expect. The problem is when the fan is turned down to a low or medium setting, it emits an incessant buzzing.
Pros: The fan looks cool, was cheap and moves air.
Cons: The fan emits a near unbearable buzzing sound
Summary: Nothing really much say about this fan, it's okay I suppose moves decent amount of air. However it did started to make a slight rattle noise after a year, make sure to clean or blow the dust of the blades which could also be the problem. The fan looks cheaply made as well.
Pros: - Moves decent amount of air. - Red LED light.
Cons: - Not PWM - Doesn't seem like high quality build - Started to make slight rattle after a year or so.