The model is thne XB-8000 class B transponder.
The XB-8000 AIS Transponder has WiFi, NMEA 2000® & 0183, USB and GPS receiver all built right in and includes our powerful external GPS antenna.The world's first Class B AIS with built-in WiFi and NMEA 2000 gateway converting navigation instrument data so it can be viewed on most any tablet, smartphone, PC or Mac. It is the most full-featured Class B AIS "black box" transponder and is the only AIS transponder that can be used as a GPS source for NMEA 2000 networks.
In this case we were able to sell the unit to the buyer, he is a delivery skipper and wants the best AIS on the market but also needs an AIS that can have its MMSI number changed for each delivery.
What an interesting question!