SD Card Association
The SD Card Association is a group of technology companies that developed industry standards for the Secure Digital (SD) storage technology. The group encourages the development of consumer electronics products that use Secure Digital (SD) technology. Panasonic, SanDisk Corporation and Toshiba Corporation established the SD Association in January 2000 as a new industry-wide organization setting industry standards to promote SD product acceptance in a variety of applications. Today, the SD Association has approximately 1,300 members involved in the design, development, manufacture or sale of products using SD technology.
Membership in the SD Association provides up-to-date information on the complete SD specifications, allowing members to develop products and solutions designed to the standard and compatible with other SD devices. SD Association members have the opportunity to participate in SD Association activities such as committees and working groups, helping advance the technology of the industry's leading memory card and host device standard.
There are a variety of Secure Digital (SD) products available..
Secure Digital (SD) --> Original SD card offering capacities up to 8GB currently.
miniSD --> A smaller form-factor version of the original SD card.
microSD --> Currently the smallest flash memory card on the market.
miniSDHC --> High Capacity version of miniSD card.
microSDHC --> High Capacity version of microSD card.
SD plus --> A form of SD card developed by SanDisk.with USB additions.
Eye-Fi --> An SD card with built in Wifi capabilities of its own.
Gruvi --> A form of SD card developed for content distribution by SanDisk.