always thought looked the maximum write speed of your device every time you buy an SD card, otherwise you will spend money for nothing.
this card offers:
write 50M / S
read 80M / S
to recall the write speed is the most important because it is what determines the speed with thr you can write your information, this card is recommended with the latest generation of 4 and gopro hero black hero who request Minimum 3+ 45m / s
you must know that the most that can little less, but since the capacity and speed of the cards evolve quickly, you will pay an expensive product necessarily obsolete in 3-4 years, so buy a good product for what you need, otherwise you pay a premium.
for example the galaxy s4 could write a 15m / s, I board not find data on the S5 but internal memory (no micro SD) seems able to write 20m / s, so with a micro SD 50m / s you will have no problem
if that comment helped you thank you to note