At first glance, the extension looked good, but they did not think of a use state. The manufacturer has the plus and minus pole wired incorrectly and thus connected to mass Plus. Luckily my connected device was short-circuit proof and has survived it.
I kept the article anyway, but only because I could solder it within half an hour even new, and I had not had time to one more time to send it back.
So be careful with the cables that chance is at 50/50 that you get a correctly wired cable.
