Summary: After several times of disconnecting and reconnecting it (from/to power supply) it returned to being quiet... for 1 week. Now it continuously makes the same loud high pitch noise and vibrates, it can be heard loudly from the opposite end of the house.
Pros: The lights look and work as advertised Easy to install Silent when working properly*
Cons: 3 days after installing the fan it began to make intermittent and very loud high pitch noise and vibration.
Summary: Rating this a 1 start because both fans should work and not just one of them. :(
Pros: I bought two of these fans. One fan works great, very quite, not a problem at all.
Cons: One of these fans is loud, and makes a weird high pitch noise. It was loud to begin with though and started making the weird high-pitch noise around 3-4 months after purchase and continual usage, where it starts up and sometimes does this and then cease once the computer is completely logged in. ...
Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Blue LED Silent Fan for Computer Cases, CPU Coolers, and Radiators
michael d., Newegg
6 May 2015
Pros: Has a pretty blue light.
Cons: It is louder then stated the Noise Level says 19 dBA I contacted support and was told it is 36 dBA on top of that i wanted to ask about a cpu cooler and before i could the rep ended the chat so the customer support was terrible.
Summary: I cannot use it because the howling is giving me a headache. The price is not worth the time to wrap it up and ship it back so I'll just have to buy a different fan. I will think twice in the future before I buy another Cooler Master product, which is sad because they have always provided quality...