PiBOX India Heatisnk for Raspberry Pi 4, 3 Pieces for Raspberry Pi Heavy Duty Copper and Aluminum Heatsinks with Thermal Conductive Adhesive Tape for Raspberry Pi 4B Model B - 3 Pieces- Gold Color

I bought it on February 2024 to replace the stock heat sink, it's working well till now The product is worth for money, the heat sink sticks very well and fits properly. It's really easy to install

The heat sinks attached properly to a Raspberry Pie 4B. I was also able to use the official case along with these heat sinks applied. I'm giving a four star rating because the packaging was open and the items could've fallen off any second. The items are good quality though.

I own a Raspberry Pi 3b+ which I run Klipper on for my Ender 3 S1 Pro printer. It had a problem of thermal throttling all the time. I bought this, and now it is able sustain around 50° Celsius for a half an hour print without any throttling. It is very simple stick to the Pi and just works. I did face an issue with the blue heatsink where a few its fins were bent when they arrived. Packaging isn't great. I just bent the fins back to its position but they need to imrpove packaging anyway.

Product is fine but price not justfy the product. Better to buy combo with pi box is better deal

Nice quality heat sink

I am running this aluminum heatsink without any fans, in the raspberry pi case fully closed. Earlier temps used to 58-62C. After this, the temperatures are between 48-55C. But I had to remove the adhesive pad below the main heatsink, had to scrape it off, as it did not make any difference in temperatures. Used a touch of thermal paste on the cpu chip and applied the heatsink directly. Not sure about the country of manufacture.

I have raspberry pi 4 2GB model. Heat sinks are good. They stick firmly with not problem. Definitely not as effective as fan but still makes a huge difference in keeping cpu ram and usb controller cool. you will get 3 heat sinks (claiming copper) one for CPU, one for RAM and one for USB controller. I have tested before and after and i watched 4K video on youtube with no lag and temp was maxed at 75. and without heat sink it is around 100. so definitely a good option in this price range.

I have a custom network gateway + firewall with openWRT running on Raspberry Pi which has to run 24x7x365 and takes care of whole of my premises network. Even though network components are placed in a much cooler location. Still the temperatures on peak network usage used to go beyond 51 degree celcius. I removed the adhesive from the CPU and network heatsink and used a thermal grease from Cooler master and attached the Pi with a FAN. However used the same shipped thermal adhesive for the RAM one. Now my Raspberry Pi Firewall is around 10 to 10.5 degree cooler. Around 37 to 38 degrees when idle and peaking to 41 degrees when under heavy usage. Happy with the product.