Marincos EEL Y Shore Power Adapter 30 A Dock to 2-30A Boat The Marincos EEL Y Shore Power Adapter 30 A Dock to 2-30A Boat SKJ MAR-Y30-2-30 Features a 30 Amp Male to 2 - 30 Amp Female Product Design Designed for use with standard inlets NEMA Single-handed operation No sealing ring required Patented jaw-clamp technology provides a watertight seal every time. Product Features Benefits Built-in cord light for added safety - alert light indicates if you are plugged into the dock and cord is powered