It can be complicated sometimes when you have an electrical gadget that requires a memory card and you're really not sure which type it needs, or which is best for you. There are a lot on the market but hopefully this article will help to clear up any confusion and explain the different types of memory card and what they do.
Micro SD (Secure Digital) cards are memory cards that can be used in portable devices like mobile phones, games consoles, digital cameras etc. Commercially, the micro SD card is the smallest card available and is roughly a quarter of the size of an SD card. Micro SD cards can be used in devices intended for SD cards through the use of a special adapter.
The mini SD card again can be used in many portable gadgets and devices though in physical size it is slightly larger than the micro SD card. The mini SD card is currently available in capacities ranging from 16 MB to 8GB (mini SD) and 4GB to 16GB (mini SDHC).
Memory Stick Pro Duo
This type of memory card is designed for pocket sized digital cameras, mobile phones and some portable games consoles. It is a small flash memory card, just slightly smaller that the SD format. These types of cards still have the same features as larger memory sticks, and are available with or without high speed mode and other such features.
Memory Stick Micro M2
This type of memory card was released by Sony in 2006. It is roughly a quarter of the size of the Memory Stick Duo and capacities available include; 64 MB, 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB, 8 GB, 16 GB, and 32 GB. Just like the Duo types, the M2 comes with an adaptor so that this can be used with devices intended for use with Memory Stick Pro.
MMC Cards (MultiMediaCard) is a standard flash memory card roughly the size of a postage stamp. These types of cards are used as a storage source for portable devices that can easily be accessed by a computer when removed.
There is of course, further information about the above mentioned types of cards, but also many other types of cards that haven't been mentioned here also. Please look online for more information.