In initial tests, the adapter worked flawlessly, but after a few weeks in use (3-4 presentations) have first loose contacts become noticeable. I always had extremely careful that the adapter has been put on a flat surface and has not been moved. But the loose contacts occurred with increasing frequency and in some prolonged use (several hours) broke sometimes the video transmission from and I had to re-plug it. Unlike the original, which clearly attaches itself with a click in the Thunderbolt connector, this is just in the bush in it and thus does not provide particularly good grip.
Who sometimes just needs to keep a one-time presentation and thereafter no longer need the part, can buy these adapters - if you want but a little longer of an adapter have something ought to prefer to stay with the original, even if you have to invest a little more.
