This model is equipped with automatic parent-child registration function that allows you to easily create a stable internet connection environment using existing TV wiring (coaxial cable and TV terminal). Ideal for detached houses where Wi-Fi cannot be expanded without LAN wires. Compatible models: ZGX-4000CSV-HN *Cannot communicate with models other than ZGX-4000CSV-HN This is a top model of the ZEX-200CSV2-HN, but it is impossible to communicate between intermediate models.