Review on 🔥 Black 4-Set EasyCargo Raspberry Pi 4 Cooling Fan – 30x30x7mm, Brushless 3.3V 5V DC Fan – Compatible with Raspberry Pi 4B, Pi 3B+, RetroFlag NESPI Case (30mmx30mmx7mm) by Christopher Sullivan

I bought 4 packs of these fans and found them very good. They are very quiet even at 5 volts and keep my Raspberry Pi 10-15 degrees cooler. I liked them so much that I bought 4 more packs within a week. Why only 3 stars? Now one of the fans from the second 4-pack has died. Both sets are still within the return window but unless I have more breakdowns I leave them as they do what they are supposed to do. considering they don't die. I have 7 other Raspberry Pis I'd like to add them to, but I think I'll wait a little longer this time before ordering more from this brand.