This Copper Shims thermal conductivity up to 401w / mk, and ordinary copper thermal conductivity is only 20-30w / mkCPU and GPU graphics card in the inside part of the laptop using a thermal plastic thermal conductivity, thermal plastic at high temperature for a long time easy to aging, and ultimately lost, leading to overheating of the CPU or GPU, the Laptop will not start after overheating. With this copper pad to greatly lower gpu temperatures, can be used for graphics, northbridge, CPU chips. It can be used as heatsink solution for Xbox, PS4 and all laptop and computer such as HP, Dell, Acer, Thinkpad etc.