GPSMAP 12x3 and GPSMAP 16x3 Connector View


Device connectors with callout

Callout number 1

GPSMAP® 12x3: 2 microSD® memory card slots, 32 GB max card size1.

GPSMAP 16x3: 2 microSD memory card slots, 1 TB max. card size2

POWER

Power and NMEA® 0183 network

SONAR

12-pin transducer (Not available on all models)

HDMI OUT

HDMI® video out

CVBS IN

Composite video in

USB

Micro-USB for compatible Garmin® card reader3

Ground screw

ETHERNET

Garmin Marine Network

NMEA 2000

NMEA 2000® network

J1939

Engine or J1939 network

1 As of software version 34.00, you can connect an external USB card reader to a GPSMAP 7x3, 9x3, and 12x3 series chartplotter and use a memory card up to a 1 TB, formatted to exFAT with speed class 10 or higher.
2 As of software version 34.00, GPSMAP 16x3 series devices are compatible with up to 1 TB memory cards formatted to exFAT.
3 Only compatible Garmin card readers recommended. Third-party card readers are not guaranteed to be fully compatible.
GUID-3E67C80C-0812-4EEC-BC60-699751B9CF6F v7
September 2024