Description: brand new and high quality. Feature: Made of high-quality copper material, durable, firm and stable for us to use. Designed for notebooks and some small spaces, the use of pure copper has a higher thermal conductivity, and the heat sink exchanges heat with the air to dissipate heat more quickly. The groove is designed to increase the surface area of heat dissipation. The thicker the heat sink, the deeper the surface area is. The larger the surface area is, and the heat dissipation effect is relatively better. Tear the blue film sticker directly on the back and you can use it directly. Easy and convenient for us to install and remove. Please check the specification table and make sure that the size of the heatsink fits that of your component. Heatsink only, other accessories demo in the picture is not included! Specifications: Item Type: Heatsink Material: Copper Size: 40x26x2mm/1.5x1.02x0.07in, 40x26x3mm/1.5x1.02x0.11in, 40x26x4mm/1.5x1.02x0.15in Color: Gold Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please 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