This coupler is used to join two Bluenet or Small Garmin Marine Network Cables together.
Product Accessories for Garmin Cable Coupler for Garmin BlueNet Network

SKU: GAX1252831
Garmin 20' BlueNet Marine Network Cable
Network compatible Garmin devices with the 20 foot BlueNet Marine Network Cable.

SKU: GAX1252802
Garmin Small Connector Network Cable 12m
Garmin Small Connector Network Cable 12m. If extending a regular sized network cable, a GAX12531 coupler is required.

SKU: GAX1252830
Garmin 6' BlueNet Marine Network Cable
Network compatible Garmin devices with the 6 foot BlueNet Marine Network Cable.

SKU: GAX1253101
Garmin Marine Network Adapter Small to Large
The Garmin marine network adapter cable converts small (male) network cable to a large network connector in order to connect to your compatible Garmin chartplotter.