some content providers sell ss2 card with their own tranponder locked in the eeprom of ss2 card so the card can not be used on other channels/transponders. This unlocker helps you to unlock this and make the ss2 card work for any other transponders also.
mostly satellite internet service providers locks their service on the MAC address of your card to avoid illegal use by others except the original subscriber.
SS2 unlocker re-writes the eeprom of ss2 card and gives an option to change the MAC address. this only works for ss2 rev.2.3