The four levels include C2 (2MB/s), C4 (4MB/s), C6 (6MB/s), and C10 (10MB/s). UHS Speed Class: UHS stands for Ultra High Speed. Denoted by a “U” symbol on the SD card with a number inside it.
A SD card is an important device as a lot of memories captured are stored in them. To ensure that these memories are not lost, it is important to purchase a SD card that is tough and durable.