I bought this fan to upgrade my Ender 3's fan. I chose this fan because it is 24V and would be easier to install compared to Noctua. I measured the decibels of this fan compared to the stock Ender 3 fan and found it to be about 5 decibels quieter on average (measured at 1 inch and 1 meter). Overall a good buy if your Stock Ender 3 fan is broken and I want to buy something quieter with the same airflow and replace straight away. I also bought a 40mm Orion fan, which is also 24V and much quieter than the Anivision fan, although it has a smaller CFM, uses different screws and doesn't have a 2-pin connector.
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