You are able to connect your Raymarine Seatalk NG device or network to the DataHub.
If you have a Raymarine Seatalk NG network installed on your boat, you will need the SeaTalk NG to NMEA 2000 (N2K) adaptor cable ( white striped spur adaptor cable) to connect to the DataHub.
Panbo has a great article that explains the topic further: https://panbo.com/finally-raymarine-seatalk-ng-to-nmea-2000-backbone-adapters/
If you have a spare white Spur connector on your Seatalk NG bus, you can use this adaptor from Amazon to connect to the DataHub.
If you need an N2K tee adaptor and M12 cable pack, these are available from the PredictWind Shop.