I bought this thermal pad in March and although it said it was rated at 6.0W/uK I was very skeptical. After a few months of use, I'm still skeptical, but I don't have the tools to test it. However, I only required around 1.2 W/uK and this mat certainly did the job at a great price. I have used this pad to replace pads in an HP Compaq nc6400, Dell Inspiron laptop with GTX 1050 Ti and GTX 760 and so far everything looks fine. I've run the highest possible stable memory overclock on the GTX 760 which has been around +625MHz and so far I haven't had any stability issues so it's safe to say the pads did their job. The pad has a hard plastic sheet on one side and a soft plastic sheet on the other side, making it very easy to use a razor blade to trim the pads to the perfect size as required. Overall it was great value for money and I had no issues, but I'm not sure about the 6.0 W/uK claim as it's unusual for pads in this price range. Do not buy these pads if you expect adhesion, they are regular thermal pads.