“This is a 3 wire fan in that the speed it runs at can be varied. It comes with a plastic shield to mount it inside the official PI case. (And it comes with a heat sink that fits the CPU)”
“The fan is not for a Raspberry Pi at all, but I needed a small controllable fan for a different project to ventilate the enclosure and this was ideal. It was delivered very quickly and it works perfectly.”
“Very easy to set up. The fan is slightly noisy when running, but on the other hand it only kicks in at (configurable) trigger temperature so in everyday use it is fan. The heat sink reduced usual day-to-day running of the RPi 4 by about 2-4C.”
