SD Memory cards are used in many different devices these days from smartphones to cameras to video recording devices… There are so many cards to choose from. For example, check out [click here] to see an example of what I am talking about.
So, how do you determine what “class” card to purchase? Like everything else when it comes to storage; speed and capacity are two of the main factors that most people look at. A general rule of thumb when it comes to the SD Card (for file and data storage) is that the higher the class number, with Class 10 being the highest, the faster the read/write speeds. To learn more follow the source link below to get insight on SD Memory Cards…
The SD Association defines Speed Class standards indicated by speed symbols to help consumers decide what card will provide the required minimum performance for reliability.
Source: Speed Class – SD Association