Humminbird’s site says the Ice Helix 7 G4 is compatible with Lakemaster Plus maps.
The unit takes MICRO SD cards, but the Lakemaster Plus Wisconsin V3.0 card that came today is a STANDARD SD card, so obviously this is NOT going to fit.
There is nothing in the ordering specs for the Lakemaster card saying what size card these are, or options for micro vs. standard cards in the ordering info.
I would guess that this card is probably protected and can’t be copied to a Micro card? If so, how do I get a map card that does fit?