Review on 💨 Efficient and Powerful Wathai Brushless Cooling Blower Fan - 120mm x 32mm, Strong 12V DC Centrifugal Fan for High Airflow by John Faxon

I use these fans behind 1U rackmount gear that need a little more air. Squirrel cage fans meet all requirements very well and let more air through. At the lower speeds I use, the fans are pretty quiet. As you increase the speed you will get more noise, but these fans will move A LOT of air in return. I just installed them so I don't know if they will last long. They're rated for 50,000 hours and if I get even half the continuous use I'll be very satisfied. <fingers crossed>