6PCS New SG121238BS DC 12V 2.1A S7 S9 T9 L3 BTC ETH Mining Violence Fan 120/120/38mm 5000RPM

Power fans but very loud. need a speed controller so you can adjust the speed to limit the noise. About 3 weeks into this, 2 of the fans broke but amazon was quick to replace. I say again, these fans are very loud when turned up full speed. Once I installed a fan speed controller with the knob, I could limit the speed which limited the noise.

It is a fast fan and pushes nice cold air but not 6000 rpm… as others have stated maxed out at about 4800 rpm which is plenty but definitely gals advertisement . First fan I received was dead on arrival. Worried about the quality with this one …

Bought 2 set and both set the fans looks recycled. It does work and it push a lot of air. The issue is you won’t really know if it will last. It could have been used for a while and nearing its lifetime. Who knows!

The will take your finger off, be careful. So, that means they work good.Very powerful fans, work great for my rig

I have had 3 fans fail already out of the 6. They start off with great airflow and they just die off. They stop pushing near as much air. Not sure what is going on but I had high hopes for the fans as they put out a ton of air when they work but its like something internally fails in them and drops the fan speed way down.

1 fan DOA, Another died with less than 24 hours of use, another is screaming / in process of failing in less than 48 hours.

The fans themselves work fine but the max speed is 4800rpm not the stated 6200rpm. Misleading to customers that need a fan that goes to a specific speed like for asic miners for example

Fans max speed is 4800 not 6200.