Review on 🔥 High-Quality SUNON MB40202V2-0000-A99 Fan: 24VDC, 7.7 CFM, Vapo, Ul/Cul/Tuv, 40x40x20mm Size by Arunprasath Corso

I wanted to upgrade the fans on my 3D printer and came across a catch I liked that required 2 4020 fans. I chose to use them because they were 24v, just like the ones that were replaced, so I didn't have to fit buck converters. These things can move air like crazy, but the downside is that they make some noise. Not LOUD, but definitely not quiet. And not to mention these things are strong, not just airflow. I accidentally ran my thumb over the blade and it peeled off a piece of skin (print out the covers next). I haven't done any actual airflow testing other than feeling the air. came out of the fang channel which was a good steady vapor.