Waterproof charging for your devices onboard; whatever the weather. The socket will work with any USB Type-A connector to charge up to 2 devices at a time. Compatible with phones, tablets, fish finders and chartplotters. Works with any USB Type-A connector to charge up to 2 devices at a time. Compatible with phones, tablets, fish finders and chartplotters.Approved IPX4 waterproof rating with the cover closed and waterproof with 1, 2 or even 0 cables pluggedEasy to install with a low profile and small mounting footprint, the socket can be both opened and closed with easeStandard barrel size fits existing USB sockets