The Binder 770 connector is our standard connector for tether connections above the water. The connectors have 8 pins, are IP67 splashproof when mated, reasonably priced, and compact. This Binder 770 bulkhead connector can be mounted in a spare hole on the FXTI for your custom connections. A corresponding Binder 770 Plug is required for use.
The connector has a current rating of 2A per pin, is rated for 175V (1750V impulse), can handle >5000 mating cycles, and has gold plated pins.
Please note that the connector requires moderate soldering skills.