Looking for SD Card

[Garywalleye]

I have a Hummingbird 997C CPS side imaging with Navionics hot maps premium SD card EAST  I just looking for an updated card, any suggestions?

[fisherdude]

I think navionice hot maps can be updated . Go to navionice web page download the current update . There is directions how to.

Sent from my SM-A102U using Lake Ontario United mobile app

[Topcat]

Also,  Hummingbird website will provide you with updated s/w.  You just need a card to download the file onto.
They will provide you directions on how to install and turn on the unit in Demo mode so you will not harm the transducer