WINSINN 50mm 5015 Tiny Cooling USB Blower Fan 5V, 50mm Micro Mini USB 5 Volt Fans Blower Turbine Turbo Hydraulic Bearing, 1000mm/39in Cable Brushless Cooling 50mmx15mm (Pack of 4Pcs)

Easy install, works great, and not too loud. I recommend for 3D printer upgrades

The media could not be loaded. I've previously owned these fans before. They are a bit loud at full speed but once reduced it's fine.

I needed to replace the blower fan on a ultrasonic table-top humidifier. And this fan worked great! It's a little stronger and louder than the original fan, but it does the job!

Great for modding my 3D printer part cooling system. Lightweight, good airflow, and relatively quiet. Plenty of cable length foroat applications and I had no issue trimming down the cables for my use.

Mighty worth all 4. Cooling all my equipment.

use winnsin brand alot they are good fans

Overall, they work very well, as long as they are not in a vertical position and not on a moving device. These things rattle like crazy, the fans make micro vibrations on the fan chassis. Don't use these for your 3D printer, they're noisy. For stationary applications, go for it.Other than that, its a good 5015 fan that runs quiet (when not in vertical position) and has good CFM.

The media could not be loaded. These fans push a lot of air, so much so that i have to limit the power to 50% or my nozzle would cool down too much. But be aware that these bearings allow the fans to move up and down within the enclosure, creating a rattle. Otherwise they’re super great