Wathai2Packs DC Blower Fan 4010 Radial Cooling Fan 5V 2 Pin DC 40mm x 10mm

So far, so good. I'm putting a PI-Zero in my attic to control an antenna and I thought I should include a fan.I have so far just printed the 'box base' to attach the Pi and blower to. I'll print another with sides and holes on the end/top for the fan. We will see how it goes.....

It works, but noisy. easy to install because it is 100% compatible with my ACEPC GK1, except connector, but I knew that I would have to cut it and solder an original one. If it wasn't that noisy I would be happy with it.

Designed 3d printed, force air cooled iPad mini kneeboard for general aviation pilots. Fans work very well, are quiet with good airflow and consistent size making them perfect for this use.

These fans are loud for their size. They make a very high pitched sound. I was adding a fan to my LSI 9217-8i. I couldn't deal with the noise so I went another route.

Used this in an active cooling rig for my old S7 used as a dashcam. Tapped power off of an extension to power the phone/dashcam. One of these had a manufacturing defect which prevents the fan from turning. *thumbs down* .... The other unit (ordered the 2 pack) works fine (in service about a month), but when cold (30-40F), at startup is EXTREMELY loud... This indicates the bearing sleeve is of extremely poor tolerances... That said, 1 month in, it hasn't failed...