Compucase CF-V12HP Cougar Fan with Hydro-Dynamic Bearing,MTBF300,000hrs and Auto Sensor Control

These fans are excellent. i bought them for my new HAF-X rig to replace the standard fans that come with the H100 as i heard they were noisy and boy did they whine.Fitted these and all you hear is the wind noise as the air is pushed through the rad just make sure it is the v12HP version you buy not the standard v12 as they have better volume air flow.Buying another for the graphic card funnel.

Got it to go with my orange Cougar Challenger tower and it looks great! no complaints with the sound, little to no noise under load and the rubber fittings instead of screws have led me to never use screw fit fans ever again.My only complaint is that the rubbed fittings are ridiculously hard to get through the holes! do NOT try fitting these if your computer is already built. I was dangerously close to hitting my components due to my fingers slipping off trying to install them.

Amazing.I have bought many fans in my life, both for me and when I had a computer shop. This is one if not the best fan I have ever had.Very powerful yet silent if not at max speed.The PWM works well, no clicking at any speed, very little vibration, high pressure: works well as liquid cooling radiator puller.

These are great fans, excellent cooling, silent as you might expect other than the whining sound that irritated me...If you want silent fans able to offer better cooling than noctua fans but sacrificing the sound then these are for you...The difference between these and noctua is just a decibel...Used both and ended up settling for the noctua because of a whining sound from these otherwise these offer better cooling

Paired two of these with my Corsair H100 and the difference when compared to the stock fans is incredible.Connected to the H100's fan controller and running on the lowest of the three settings, these fans produce similar temperatures to the stock fans on the highest and they're near silent too. Thoroughly recommended!

Have four of these in a push-pull config for an H100i. much quieter than the supplied Corsair fans (in part due to max RPM - 2500 for the Corsairs, ~1600 for these). great cooling across the board, equivalent to the much noisier stock fans). my i7-3930 runs below 70 degrees at 4.5 ghz, 100% load (no HT), Vcore 1.30V (Asus P9X79 Pro MB, CoolerMaster HAF X, GTX670 OC2, 16Gb Corsair Vengeance at 1600mhz).

Bought two of these fans after a-lot of research and I am very pleasantly surprised.I bought these to replace the single Cooler Master fan that came with my cpu cooler (Cooler Master Hyper 212 EVO), I fitted these in a push pull configuration and ran a stress test. Never once did the temperature get over 35 degrees c and when idling the cpu sat at just 2 degrees above room temperature.Excellent fans, Extremely quite when idling, and only noise you ever hear is simply the air being pushed around.

These are fantastic fans: effective, yet whisper quiet.I have two of these pushing air through my H100 cooler and out of my HAF-X case. They do a brilliant job and the fan cables attach to the fan controller on the H100 which is able to control them (some fans don't work with the H100 fan controller).I had some AcoustiFans for years and, even though they are a little more expensive than the Cougars, I think the Cougars have the edge on noise levels (lower) and air pressure (higher).