1. High quality material: Made of red copper with a high thermal conductivity of 401W/(m.k), chemically polished to prevent burrs and short circuits. 2. Comes with thermal conductive silicon wafers: Thermal conductive silicone grease is soft and resilient, paired with high-performance 5W/m.K thermal conductive silicon wafers, which can tightly fit the surface of electronic devices and fill in space in hard disk particles, keeping the heat dissipation fins at the same height, achieving rapid heat dissipation and extending the lifespan of the hard disk. 3. Special design: Accurate size calculation to prevent installation deviation and short circuit, suitable for the installation space of lightweight laptops. 4. Usage: TN42 is suitable for M.2 2242 solid-state drives, does not support mSATA disks, but supports B Key and M Key disks. 5. Durable: After multiple grinding and milling processes, the surface undergoes oxidation resistance treatment, which does not rust or oxidize, making it more durable than ordinary copper sheets. Combined with high-performance thermal conductive silicon wafers, it has better heat dissipation and is not easy to leave fingerprints. The surface will not oxidize and darken after long-term use. Type:M.2 SSD Cooler Thermal Conductivity:401 Product process:antioxidant process Product thickness:0.5mm Product weight:30g Product models:TN42 Colour:Copper Color Material:copper Size:TN42:37x23mm/1.46x0.91inch Package Contents: 2 x Copper Heat Sink 2 set x accessories(2 x thermal silicon wafers, 1 x Screwdriver, 2 x M2 Screws, 1 x Warp, The color of accessories is random and cannot be specified.)