EZDIY-FAB 12cm 120mm 200CFM 4000RPM CPU Cooling Fan 12V DC 4-Pin Molex PC Computer High CFM Cooling Case Fan with Metal Finger Guard Grill for bitcoin mining/mining rig

These fans are LOUD. Think a plane taking off loud.Suitable for use inside a Datacenter, or somewhere noise isn't important. But no chance of operating these in your home.I foolishly installed 6 of these into a server chassis wanting to cool it down. It did the job. But there was zero chance of being anywhere near them!The air throughput is second to none. These are the most powerful fans I have discovered.

A very noisy but tremendously powerful fan. It takes around 1.6A at 12V so can be run without issue from the supplied Molex. I use them in a rack and don't care about the noise.

Got these for a crypto mining rig which I had been struggling to cool.These really move the air, by a factor of 5 more than any desktop/PC 120mm fan I have ever used. So they really do an excellent job.They are however really noisy. This is understandable given the speed they turn at but this would be too much for an indoor or in home installation. They need to be in another room or something.But I will say again they really are very impressive fans!

Lots of air flow, very loud (too much for a desktop). Undervolting to 5v gives a decent flow and tolerable volume. Connector is just 2 wires via molex, not a fan header. I wanted to use these as extraction fans and in push/pull gave good flow through several layers of carbon filter cloth but one of the fans automatically resets itself at 12v (I don't know if this is protection circuitry or something else) so it keeps spooling up repeatedly. It works at lower voltage (5v) as a decent solder fume extractor through carbon cloth. The other fan works well.

Very powerful fans, very loud too but it's to be expected when they move so much air and they can always be undervolted to quieten them.No negatives to note, great value.

Be warned people are not lying these are, but also very effective and do exactly what I wanted them to. I have installed one as an extractor fan for my 3D printer enclosure and combined with a variable fan controller shifts the air out with ease. However, be careful, very careful these will do you damage if your fingers get in the way; during testing I dropped one on my mechanical keyboard whilst it was running the shear force of it ripped off 3 keys by snapping the stems and one key had a gouge approximately 3mm deep out of it caused by the blades. Needless to say, violence is golden, I love these fans, they’re noisy, work perfectly at various voltages from about 5v DC and for the price you can’t go wrong

Excellent at shifting lots of air quickly. Molex plug. Very loud. Put mine on a temperature switch as its not bearable running full time.

Put these in my airbrush spray booth to give more for, work really well