: Licenses are bound to specific appliance types. For example, you cannot transfer a license from a software appliance to a hardware appliance or between different hardware models (e.g., NG100 to NG500 ).
There are several types of Kerio Control license keys, catering to different needs: kerio control license key
Administrators can increase the user count of an existing license by purchasing an "upgrade" key. : Licenses are bound to specific appliance types
If you want a turnkey solution, buy a Kerio Control Box. The license is pre-installed, and support is included for the first year. kerio control license key