Nice answer. However this "issue" has happened to me a few times causing me to buy a new adapter FROM DELL once and using a used adapter that I had from an old computer. This is a nice way to pad profit but I won't be a customer of dell any longer.
Why attack China? All they are doing is manufacturing a product that complies precisely with the specs provided by Dell! They are only making what DELL wants. Furthermore, it is DELL that sets the price and pockets the profits.