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Garmin Marine Devices That Feature an Included Micro/SD Card
Generally, a microSD card is not included with a Garmin Marine device, with a few exceptions:
An arrangement made between Garmin® and a retailer for special marketing purposes. In such cases, an additional chart may be bundled on a micro/SD card with adapter, and would be packaged separately in the same box as the Garmin product
GPSMAP® 8400/ GPSMAP® 8600 series feature two micro/SD card slots, and inserted in to one of the slots will be an 8GB micro/SD card. This card is blank, and user data for the device is not stored to this card unless the data is backed up to the card. This card can be used for user data backup, and for use with Garmin ActiveCaptain™