“Cheap and does what it says, keeps the CPU cool and even came with a handy heatsink. The only issue I had with this isn't the fan but the standard case doesn't allow much air intake but after a little DIY that's not a concern for me.”
“My Raspberry was getting too hot because I use it as a mini server. After receiving the Fan, we can notice the difference. Now it works better than before. Would definitely recommend to buy the fan”
“A great value little fan, perfect fit into the official pi4 case. The instructions on which pins to connect it to is the illustration on the box.
If using Raspbian OS, you will need to go into "Preferences"...."Raspberry Pi Configuration", click the "performance" tab and enable the fan. you can also set the temperature at which the fan switches on. My system needed a reboot to enable the fan temperature control. I've set mine to kick in at 75 deg C.”