cigemay 10 Pcs Copper Heatsink Shim, Copper Sheet Shim Piece Heatsink, 20x20mm, 0.3/0.5/0.8/1.0/1.2/1.5MM Thickness, for CPU GPU Laptop for Desktop Computer North South Bridge Connection (1mm)

• MULTIPLE THICKNESSES: The copper heatsink shim provide 6 kinds of thickness (0.3/0.5/0.8/1.0/1.2/1.5MM) for you to choose. It's easy to install and has excellent thermal dissipation.
• MULTIPLE PROBLEMS SOLVE: The copper shim can solve laptop frequent crashes and other problems caused by thermal conductivity.
• WIDE APPLICATION: Thermal Pad can be applied to the desktop computer north and south bridge connection, graphics card thermal conduction.t the cooling effect does not be affected. If you still worry about it, you can polish the surface of this copper shim by fine sandpaper or toothpaste.
• HIGHER THERMAL CONDUCTIVITY: The thermal conductivity of copper heat sink pad is up to 401 w/mk, very nearly silver's thermal conductivity 409 w/mk, much higher than ordinary copper pad (20-30w/mk)
• INEVITABLY OXIDIZE: Copper sheet shim piece exposed to the air, the copper surface will inevitably oxidize and turn dark, but the cooling effect does not be affected. If you still worry about it, you can polish the surface of this copper shim by fine sandpaper or toothpaste.

6 kinds of thickness (0.3/0.5/0.8/1.0/1.2/1.5MM) for you to choose. The copper heatsink shim can solve laptop frequent crashes and other problems caused by thermal conductivity. It applied to the desktop computer north and south bridge connection, graphics card thermal conduction. Specifications: Material: Copper Size: 20(L) * 20(W)mm / 0.79 * 0.79inch Thickness: 0.3, 0.5, 0.8, 1.0, 1.2, 1.5mm Quantity: 10 Pcs Package List: 10 x Copper Shim