TF card (TransFlash), also known as MicroSD, about SD card 1/4, is the smallest, specifically for mobile phones, small camera equipment, GPS navigation and other design of the removable flash memory card.
TF card has all the advantages of traditional SD card, with SD adapter can be converted into SD card, and compatible with the use of SD card equipment, in line with the SD Association specifications.
Product grade standard:
C4 = Class4 = minimum write per second 4M or more;
C6 = Class6 = minimum write per second 6M or more;
C10 = Class10 = minimum write 10M or more per second;