If you are running a previous version of SATR on your equipment, the following upgrades are possible:

• any previous 3.x version can be upgraded to the latest version by upgrading the software on the motherboard. 
• devices running on versions 1.x or 2.x cannot be upgraded directly, al the functionality of these devices was far more limited. You will need a new motherboard and an additional adapter if you want to run the latest version.