I have a Navionics Hotmaps Platinum card for sale. It is the South region. The model number for this particular chip is MSD/HMPT-S6. It is a micro SD card with the normal SD card carrier. I have been using it in my Humminbird Helix 7 and in my Humminbird 1199. I purchased it new late in 2014. I want $100 for the chip. I am posting only in this forum right now because I would prefer a face to face meeting and cash payment.
If you are interested, please respond through the forum.
Thank you. Paul