Feature: 1. Precise Size: M.2 heatsink kit, fine workmanship, accurate drilling, rapid heat dissipation, accurate size, simple and easy to install. 2. Fast Heat Dissipation: Pure copper heatsink has excellent heat dissipation ability, which can better transfer heat to the environment. 3. 3 Sizes: NVMe M.2 heatsink kit, including three different sizes, you can choose the right heatsink to use, to meet your different needs. 4. Rust Proof: Compared to aluminum heatsinks, pure copper heatsinks are rust resistant and the thermal conductivity does not drop easily. 5. High Compatibility: M.2 SSD heat sink adopts premium material and technology, which makes M.2 SSD more compatible and efficient in cooling. Specification: Item Type: M.2 Heatsink Kit Material: Brass Product Sizes (L x W x H): Approx. 77 x 22 x 2mm / 3.03 x 0.87 x 0.08in Approx. 77 x 22 x 1mm / 3.03 x 0.87 x 0.04in Approx. 74 x 22 x 0.8mm / 2.91 x 0.87 x 0.03in. Package List: 3 x M.2 Heatsink30 x Thermal Sheet3 x Rubber Ring Note: Manual measurement, please allow some errors.