Got the two SD cards for the holidays ordered. After the first pictures I was surprised that the write speed was very slow. Some of the cards were not recognized, so I had to start my camera again several times before everything worked again. It also has not saved all the pictures. At first they were on the map. In the evening, I then noticed that some pictures have disappeared.
Conclusion: the maps are astonishingly inappropriate for my camera (Nikon S3000). For the laptop, however, I can quickly use them.