CO312L-BL Cosmos 120mm Blue LED Ultra Silent Case Fan w/ 16 LEDs & Anti-Vibration Rubber Pads (3 Pk)

I bought these for my girlfriend, for a PC I was building for her out of some of some spare and budget parts. I just got them because they light up pink (that was her request) and they were cheap. Normally I use Thermaltake or Noctua fans which cost like 3x-4x as much, so I didn't expect much from these. But they actually move a pretty decent amount of air in an mATX case, light up bright, and are really quiet even at default power without any voltage reduction. Mostly it's the quiet that took me by surprise. Nearly silent when using their 3-pin connectors. Can't ask for better when you get 3 fans for $15.

No complaints, they do what they do and do it well, i like the solid color cause RGB is getting stale... Yeah, get these

Now, I recently got a case and realized, "I don't have enough fans!" then, these came to the rescue. They are built perfectly! They are perfectly bright to showcase in my build; they fit perfectly, the cable length is perfect, and, best of all, they look beautiful! This great value-for-money fan pack will not disappoint.

I got these as a replacement for my old fans that were loud and going bad I have had these for some time now since sometime in 2021 and not once have i had any issues with them yet and its now 2023 They are very quiet and help keep my PC cool and the green light is not that bad to look at in my opinion if they came in rgb i would have bought those instead but at the time of purchasing these i had only seen green ones for the price of the 3 of these it was well worth it i will buy thses again in future if i ever need fans again

the fit was great, love the color not too bright not too low, easy to install, it comes with its own screws and great performance.

So far so good. They're not overly bright and they're super quiet. Plenty of airflow at full speed. I use them behind my amps in the car and the soft blue glow looks great with the rest of the setup. Seem to be built well, but time will tell.

Great fans and good color! 5 stars as of May 2025. Unfortunately, all 3 fan LEDs burned out in the first year of usage. -2 stars.

These fans don't put out a blinding blue light like the fans I'm replacing. With the great color I will place 2 on my cpu cooler because they pull and push air really good. My desktop is running cooler.

Quiet and bright

quiet, fast fans. (i bought 2 packs) out of the 6, one came without a front facing sticker. not a big deal but it stands out.

They are super bright with a nice green and move ALOT of air, definitly worth your money, but they are extremely loud, uphere cheapest fans are quieter than this.