The card itself is well made and has no optical MÃ'ngel on. I use them in my Samsung NX3000 system camera.
At first I had the standard version (the version -tÃ'rkise) Samsung MicroSD in use, however, there began to Full HD video to stutter because the write rate was not fast enough. Likewise, a series of shots, there were problems.
This Samsung PRO version, all problems are past. The card is dermaßen fast in write and read mode, that's scary! It jerky nothing more in video mode and continuous shooting are uneingeschrÃ'nkt possible.
Another positive aspect is the Ãœbertragungsgeschwindigkeit the data from the camera to the PC. This is much faster than with other SD card!
The Samsung PRO card is worth the money for sure!