Not sure what to say about this. It works as a converter to step down 50a to 30a, Nothing shorted out in the process.

It works

haven't used it yet but it is just as advertised, new Marinco adaptor in the original box, at a fraction of the West Marine Pro wholesale price.

This was exactly what I needed and was much cheaper then most of the other places. Does exactly what it says, is an adaptor that supplies shore power to my boat.

Typical excellent Marinco quality. Be sure which adapter you need. The 50amp 125 volt is different than the 50amp 125-250 volt. Check your shore power for correct one. Also be sure you received an original Marinco adapter. If it is Marinco, the name will be on the product. I ordered a Marinco but was sent a lesser quality adapter. The order said it was Marinco and charged that way. I contacted the merchant and without any discussion they issued a full refund for the product, shipping, and return shipping. I think they knew they had substituted another product. All I said was I ordered Marinco and the adapter you sent sent wasn't Marinco. I reordered for another adapter that was shipped from Amazon and received the correct one.