Review on 🌀 High-Speed Brushless DC Cooling Fan 24V 40mm x 40mm x 10mm - Ideal for 3D Printers, Humidifiers, Aromatherapy, and Small Appliances (2-Pack) by Andrew Jenkins

They match the Ender 3. They seem to be just as fluid as the original Creality brand. At first they are calm. Much quieter. Unfortunately, a small dent on the fan blades and it's over. I was testing the motor and accidentally hit the blades with a screwdriver and it got loud. There was nothing I could do to shut him up again. It's ok I bought two but hit the blades again now I'm back to the noisy fan. Still better than stock but nothing like the youtube video. The case also adds sound to the system. Overall it's a bit quieter, with less high-pitched rumble, to be honest that's my biggest complaint.