This heatsink is designed for the Robot Radio (VH-109 or WCP-1538) when running in "AP Mode" to manage heat effectively. Its compact design fits neatly within the radio enclosure while allowing airflow to keep the device cool. It helps maintain reliable performance during heavy use and can extend the radio's lifespan. The heatsink also includes a 1/4"-20 hole, making it easy to attach using standard camera mounts.