Upgrade the boat end of your shore power, while keeping the standard connection at the dockside end. It's time for a change. These Dual Configuration Cordsets let you retrofit the boat end of your shore power system with a modern, safe and convenient SmartPlug connector and compatible SmartPlug shore power inlet (sold separately). They include a SmartPlug 30A boatside connector at one end and a standard NEMA twist-type dockside plug at the other end, so you can enjoy all the safety and security of the SmartPlug system in any marina equipped with "Old School" NEMA dockside power pedestals. What's in the Kit Shore power delivery systems have remained virtually unchanged since they were introduced in 1938. Contrary to popular belief, the number-one cause of shore power failure and fires is not electrical shorting, but rather overheating caused by poor electrical conductivity. These problems are built into the aging designs of common shore power technology. SmartPlug offers a better way. The Problem with "Old School" NEMA Connectors The SmartPlug Solution