The original Cobalt connector!  Bulkhead Connectors (which fit in a 10-mm hole),  Cables, and Cable Termination Kits.

Cobalt 14 is the larger size of the Cobalt connector.  The Cobalt 14 Bulkhead Connectors fit in a 14-mm hole.  Cable Termination Kits also available.

Inexpensive and reliable Simple Penetrators, Polyurethane Tubing, and Custom Products. 

Coaxial, high-current Single-Conductor, and other specialty connectors and cables in the original Cobalt size.

Waterproof Servos rated to 200m depth, High-efficiency Thrusters, and Blue Robotics T200 thrusters with Cobalt Connectors pre-installed. 

New!!!  For advanced users, we now sell individual parts of our connectors and cables.  Buy in bulk, or buy only what you need for your application.