“This fan was so good! This miniature fan is a great little accessory for the Raspberry Pi 4. It is compact, easy to install, and helps keep the Pi cooler during longer periods of use.
The fan is small enough to fit neatly without taking up much space, and it provides noticeable airflow. It is especially useful when running more demanding projects or programs on the Raspberry Pi 4.
Installation was straightforward, and once connected, the fan started working immediately.(but you have to type some code to get it working) The size is also a big advantage for small Raspberry Pi projects where space is limited.
Overall, this is a simple but useful upgrade for a Raspberry Pi 4. Good cooling, small size, and easy installation make it a worthwhile accessory.”
“A good cooling fan, albeit just mildly noisy if you are close to the pi, but with media playing the fan noise is easily drowned out. That being said it really does help with keeping the Pi cool in a compact case that can fit this fan.”