Memory cards are developed to make life easier and more convenient for people who need to save audio, video, or data files from computers, game controllers, MP3 players, cameras, and more. While we have seen several changes in design over the years, the anatomy has remained much the same. Also called a “memory stick”, this device is made to fit snugly and securely into the male end of a type-A USB port. Each USB memory card is designed with a tiny, printed circuit board on which several surface-mounted integrated circuits and other circuits for power are located.

When looking at memory cards, you will find that there are four essential components in the design. First as mentioned, is the male, type-A USB port or connector, which works as the interface between the electronic device and memory card. Second is the USB mass storage controller, designed to provide another type of interface while implementing the port. This controller also features a small microprocessor, along with minimal on—chip RAM and ROM. Third is the memory chip for the memory stick or card, the actual device on which data is stored. Fourth and finally, the USB memory card has what is known an oscillator made from crystal. With this, the output of the card is controlled. Keep in mind that with some of the updated versions of the memory card such as the micro m2, other components may apply such as testing capability, switches for write protection, second memory space, and some type of cap for the actual memory card.