“Very simply install, great piece of hardware and clear online instructions. The only negative point would be that how they have used the pins to power the fan means that fan runs continually when the pi is in standby as the software to control the on/of function ca not run until its fully powered on.”
“Works well when it makes contact with pins. Had to wedge some plastic (3 * 0.74 mm guitar picks :-P ) between the two rows of pins after installing in order to make proper contact with pi 4.”
“Great little fan. Almost completely silent and I love the RGB LED that indicates the temperature so you can see it working. Does an excellent job at keeping the Pi 4 temperatures really down.”