DHI-DSSExpress8-VDP-Device- License

"One video channel license for DSS Express V8, no prerequisite. Note: It can support up to 65 video channels by purchasing one video license."

Extending performance based on the parameters and limited functions defined in the free version requires an additional base package fee

"DSS Professional V8 access control channel base package includes 16 door licenses and is a prerequisite for access control channel expansion. Note: For access control devices with video channels, the video channel license is required."