“Keeps my Pi4 at 60C under full load for over an hour. Doesn't block WiFi or any of the ports. Looks pretty stylish too. And, as a bonus, gives a nice warm surface area to warm your hands when it's idling along at 40C! Would buy again.”
“Easy to fit, and good looking, it also offers excellent protection to the Pi. Rowards the end of installing Rasbian from Noobs, I measured the temperature, and found all points of the heat sink to be between 40 and 41 degrees C. So,it works well, too.”
“Looks good and does the job, so far has only ever got warm to the touch, comes with everything needed to install... have already recommended to a friend”