Delta QFR1212GHE 12VDC 2.7A 120x120x38mm 4-Pin Brushless Cooling Fan for Antminer s19 S9 L3+ High Airflow PC Case Mining Cooling Fan 6000RPM

The media could not be loaded. (white fan in vid is just there to prop it up, it’s not on)I bought this fan along with a wall plug adapter with a voltage regulator built in, as well as some blade covers, because I wanted to use it stand alone (for the funny). This seems like one of the most efficient fans on the market (within reasonable cost), making no compromises for noise or aesthetics because it was designed for server cooling, and man it shows! It’s loud as hell, like a jet engine, and at full power it has to rest on something heavy behind it otherwise it’ll blow itself away rapidly. I baked a pumpkin pie that would’ve cooled in ~2 hours, put this bad boy over it, and it was just slightly warmer than room temp in less than ten minutes. I used this when my ac broke during the middle of 95+ degree heat and did not break a sweat, in fact I was cold!Scary intimidating speed and sound, crazy power, and practical form factor?11/10 I highly recommend it.

I bought three of these fans. Two of them failed within 6 months.They *look* like they're original branded delta parts, so either they're defective factory rejects or fraudulent.

This fan blows well. Using it for an air conditioner condenser cooling. Super loud, draws a lot of power, moves a lot of air. This isn't a small fan for home use, it's a fan for when you need air moving now, and you don't care what it takes to get it.

These work great if the top fan needs replaced. Ordered 8 and the wiring varied on each fan with none of them long enough to reach the bottom fan. I simply swapped the top for bottom but these will do me no good once the bottom fan needs replacement.

I assumed because it was a DELTA fan....

The fan is great. High RPM plenty of airflow and a great value for the price. But with as much noise that comes from the unit (expect this!!!!!) you may want to put straps on your device which uses this fan. It sounds like a jet turbine and you wonder if it will take off. Again great product, great value just expect some noise.

It got my antminer s19 fan back up and running again. It shipped and arrived fast too which as all miners know…time is money so the quick turn arount helped a lot.

Worked great for 1 day, then the speed sensor failed and reads 0 all the time making the fan useless.Quite a disappointment because the fan case and mechanism is built quite well.