Feature:1. Made of high‑quality materials, it is to rust and corrosion, strong and durable.2. The heat sink is processed into slotted fine teeth to enhance heat dissipation.3. Suitable for routers, CPUs, IC radiators, PCBs, amplifiers, power supplies, modules, motherboards, transistors, tubes, power boards, electrical appliances, and electronic components.4. The aluminum heat sink can reduce the risk of hardware failure due to overheating.5. The product is easy to install and easy to use, you can place this cooling fin under device to cool them.Spec:Condition:100% Brand New Item Type: Heat SinkMaterial: AluminumSize: Approx. 40 x 11 x 40MM/1.6 x 0.4 x 1.6inColour: BlackFunction: Heat dissipationPackage List:10 xHeat Sink