Review on 🌬️ MakerFocus 4pcs 12V 40mm Mini Cooling Fan for 3D Printer, DVR, and Small Appliances - Efficient Replacement and Repair Component with Cable by Dave Hammon

Fans work as expected, noise is acceptable. I am using these fans to replace the OEM fans in a Dell PowerConnect 5324 as they were very noisy and had poor bearings. When all four fans are running, they get quite loud. I'm not sure if this product is designed to run 24/7 365 days a year but now they will. As a side note, I haven't measured the fan itself, but it claims to be 40 x 40 x 10. Well it's the same dimension as the Dell Poweconnect 5324 according to the Dell website but the fans didn't fit properly which required me to only use one hole and not two (which really shouldn't be a problem) as I said , I didn't measure it so I don't know if it's just my problem with my Dell Powerconnect case or the fan isn't measured correctly.