Secure Digital memory cards (SD cards) are tiny, easy-to-use memory storage devices made for a wide range of host devices. The SD card has broad interoperability, compatibility and is already supported by more than a thousand companies around the world. The SD Memory Card is the standard memory card for digital connectivity and will provide universal access to an even wider array of multi-media data. With its initial maximum capacity met, SD cards have expanded to the SDHC Card format, offering new levels of capacity. SD Cards are so popular that there are even Flash Memory Duplicators just for them.