Alphacool GPU RAM Copper Heatsinks, 14 x 14mm, 10-Pack

These heatsinks are very well made and have a good bit of thermal mass due to the thick copper base. The fins are very thin which is really great for heat transfer to the air, yet they are strong enough to be bent without breaking as is shown in my attached photo.I'm using these heatsinks with a few of my single board computers, namely a couple Pi 4 B's and the (overclocked) Pi Zero 2 W shown in the picture, and they keep things quite cool.

Late review but product overall very satisfiedthe copper heat sink's are good for high thermal conductivity allows heat to pass through it quickly.Project I've been looking into was to change the stock thermal paste for my PS4 Original (Matte black) turns out I could buy Thermal Pads for the memory chips if thats what's it called any ways I cut a hold on top of my PS4 shell because the heat sink wasn't going to shut properly, Each chip has it's own Thermal pads an heat sink an I've read that copper is better than aluminum for heat to pass through quickly, But this project help my PS4 from sounding like a jet engine when playing long hours an for those who are wondering I clean my console every 1-2 weeks also I use arctic silver 5 Thermal compound for the cpu chip very good quality paste. *Sony Thermal paste dried up very quickly an if I didn't looked up on youtube my PS4 would've crash or possibly break due to the over heating. Anyways well worth it!

Using on the controller chips of my NVME drives, they work as well as the larger, more complex and more expensive coolers as long as you have some airflow.They take up a lot less space!

Used to cool the Broadcom chip in my Calix Gigapoint 803 ONT fiber media converter for my gigabit FTTH ISP. As long as you use a solid thermal tape to attach it to the target surface, it does an amazing job at moving heat! Unfortunately, the Broadcom chip in the Calix 803 overwhelms this heatsink. (Broadcom's fault.)This is a solid deal if you frequently find use for cooling smaller profile chips that get hot during operation. the fact that you get 10 of them is awesome!

Good heat sinks, but quality control could be higher, some the fins were bent on about half of them and I had to straighten them. Used a custom thermal epoxy blend to adhere these to the chips on my Rpi 4b (cpu and memory) and they work better than expected. My R-pi 4b overclocked to 2200mhz at overvolt=6 never gets above 53.6*C. I also put the smaller 6.5mm heatsinks this brand offers on the power delivery chip and it has made it more stable. If you do this to yours, just remember to conformal coat everything.

I wanted to upgrade the aluminum heatsinks for the stepper drivers on my laser engraver control board.These were exactly what I needed. They are identical dimensions to the original heatsinks but made of solid copper. They also come nicely packaged in a firm foam tray with each heatsink snuggly inserted into its own perfectly sized receptacle. I've very pleased with them.

the base is too thin, the fins are oversized.. anything you attach these to overheats so fast this is the third different heatsink i bought and its BY FAR the worst I've ever bought. I wish i could pull them off and replace them with anything else but they are glued down :(

Got these to help cool a 10GBe transceiver. They do not come with adhesive. I got some thin heat transfer adhesive and applied it. Applied the double sided tape and stuck the heatsinks on. The work great. 2-10C difference depending on load and ambient temperatures.