What is the difference between MMC Cards and SD Cards?
SD and MultiMediaCards are very similar in size and design but there are some differences. technological advancements over MMC. These include the addition of cryptographic security protection for copyrighted data and a 4X increase in data transfer rates. To help support higher-density capacities, SD cards are slightly thicker than the original MMC cards. This means that most devices designed to support SD are also backward compatible to MMC cards, but devices designed only for MMC will not support SD. To confirm compatibility please see our flash selector.