Feature: 1. Quick Cooling: This hear sink enable efficient cooling, thus ensuring the stable working of electronic component. 2. Smart Design: Designed to maximize the contact surface area with cooling air, offering you greater heat transfer. 3. Good Material: Having been through surface anodic oxidation, the aluminium is durable with wearing and long using. 4. Extensive Use: Used as high power cooling block radiator, suitable for CPU, power amplifier, PCB board and so on. 5. Easy to Install: Combining compact size and light weight, the convenient installation can be quickly completed. Specification: Item Type: Heat Sink Material: Aluminium Surface Treatment: Surface Anodic Oxidation Heat Sink Overall Size: Approx. 150 x 120 x 20mm / 5.91 x 4.72 x 0.79in Application: Suitable for CPU power amplifier PCB board, used as a high power cooling block radiator. . Package List: 1 x Heat Sink Note: Please match the appropriate design size before use.