Raspberry Pi Copper Cooling Heat Sinks 3 Pack

I like it, the fins are pretty compact and i guess that's a good thing for the bottom chip, but in the end it didn't fit in my case so i took that one off, and put two heat sinks for the two chips on the top of the Pi. The sticker seems pretty strong, but overall i'm sure it's better then not having any heatsinks as the chips do get pretty warm.

Fits great on a RSP Zero W, which along with a modified wood case ( Nucleus for Raspberry Pi Zero & Zero Wireless - Wood by C4Labs ) looks really good! One of the 3 Zeros in the attached pic will live in my woodshed, which will be the real test...wish me luck. Even before the trial-by-outdoor-summer-heat, I like the value, finish, & appearance. I'd do a before & after with Cana kit aluminum heatsinks but I don't have the equipment.

These are three sinks, all the same size. They are just very slightly smaller than the ARM processor in the Pi. The thermal tape on the back bonds instantly, so be careful aligning it before you drop it on the chip as it may be difficult to remove.

Machine shaped to fit nicely over the CPU's of the rPi's. GeauxRobot is company to go to for my case/accessory needs. They even asssisted me with my setup, which uses a board not natively supported by their Dogbone cases.After installing the heatsync, felt a little heat being dispersed out by the sync. Although, I do not plan on OC'ing my rPi's, it's nice to know that there is a little measure of cooling in the event of increased environmental or rack temperature.

I read online that copper is more effective then aluminum. Not sure if that is true but I bought them anyways. The rating I am giving is 3 stars because the chips are different sizes but the three heat sinks are the same size. So, it is two small for two chips, and too large, for the last.

I haven't run any benchmarks, but they seem to be doing their thing. They're all the same size and oversized for what they cover, but they don't interfere with the case or anything else on the board.

Like others have said, it fits perfectly over the main processor. My Pi is mounted vertically and it seems to stick well so doubt it will fall off. I am running Kodi and overclocking my Pi B (not B+) to 900Mhz. It was running at 130degF and now it's at 124degF. I am sure if it was running at 150degF it would drop it 10deg. Getting three for this price is well worth it.

These are pretty good. I like them better than the aluminum ones everyone else is selling.