H4GA High Efficiency Pure Copper Graphene Heatsink Cooling Sticker Heat Sink laptop Memory Thermal Pad High ConductivityDescription:brand new and high quality.Feature:Graphene is the most efficient heat conductor in the worldIts thermal conductivity can reach 5300W/m.K, pure copper only 386.4W/m.K and aluminum only 237 2W/m.K.You can use the temperature software to test the temperature before and after installation you will find that it is more efficient than other radiators.When the computer temperature drops, the computer will crash le and run more smoothly and more durable.Four patterns: no printing, 4G printing, 8G printing, 16G printing for you to choose from to meet your needs.Easy and conveneint to install and remove.The ultra thin radiator is designed for the notebook and some small space heat diipation.Heatsink only, other acceories demo in the picture is not included!Specifications:Item Type: HeatsinkMaterial: Pure Copper, GrapheneSize: 66x25x0.5mm/2.5x0.9x0.01inColor: BlackType: no printing, 4G printing, 8G printing, 16G printing(Optional)Quantity: 1 PcNote:No retail package.Transition: 1cm=10mm=0.39inchPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:1 x Heatsink