Although there on Amazon actually buy adapter plug, in which the contact tulip of the grounding-type plug is not ("90 ° rotated") on one level with the pins of the adapter, I deliberately chose this variant here, although this like connections of connectors are covered. The explanation was provided by the Amazon user palindrome here (http://amzn.to/1erAe24). With the adapter, I'm pretty happy, because he very properly plugged into the electrical outlet and I when pulling the grounding-type plug the adapter had in hand only once. Only the two Euro sockets are somewhat tricky, since Euro plug can be inserted only with great effort. So I can live well, which is why there are 4 stars.