PNY Elite Micro SDXC 128Gb (P-SDU128V11100EL-GE)

Capacity of the storage media.

A flash card is a computer storage device electrically erased and reprogrammed. Types of flash cards include CompactFlash (CF)

The type of internal memory such as RAM

Class ratings measure the minimum sustained speed required for recording an even rate of video onto the flash memory card. The class rating number corresponds to the transfer rate measured in megabytes per second. Class 2 cards are designed for a minimum sustained transfer rate of 2 megabytes per second (MB/s)