["Description:\nbrand new and high quality.\nFeature:\n is the most efficient heat conductor in the world，Its thermal conductivity can reach 5300W/m·K, pure copper only 386.4W/m·K and aluminum only 237 2W/m·K.\nYou can use the temperature software to test the temperature before and after installation， you will find that it is more efficient than other radiators.\nWhen the computer temperature drops, the computer will crash less and run more smoothly and more durable.\nTwo types: chute and grid pattern design, increase the heating cooling area. The bottom polishing technology is seamless and will leave no for gap.\nIt is suiatble for PC computer, laptops, notebooks and hard disk to dissipate to extend their life for time.\nComes with the silicone thermal pad and rubber band, has an excellent performance and the cooling effect is more obvious.\nEasy and conveneint to install and remove.\n\nSpecifications:\nItem Type: Heatsink\nMaterial: Pure Copper\nSize: 70x20mm/2.7x0.7in\nThickness: 2mm/0.07in, 3mm/0.11in, 4mm/0.15in\nColor: Black\nType: Chute Pattern, Grid Pattern(Optional)\nQuantity: 1 Pc\n\nNote:\nNo retail package.\nTransition: 1cm=10mm=0.39inch\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Heatsink\n1 x Thermal Pad\n3 x Rubber Band"]