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While the new cards were designed for mobile phones, they were usually packaged with a miniSD adapter that provided compatibility with a standard SD memory card slot. The SDA adopted the miniSD card in 2003 as a small-form-factor extension to the SD card standard. miniSD microSD card in a smartphoneĪt March 2003 CeBIT, SanDisk Corporation introduced, announced and demonstrated the miniSD form factor. The first 256 MB and 512 MB SD cards were announced in 2001. SD was envisioned as a single memory card format for several kinds of electronic devices, that could also function as an expansion slot for adding new capabilities for a device. The first 64MB cards were offered for sale for 200 USD. Early samples of the SD card became available in the first quarter of 2000, and production quantities of 32 and 64 megabyte (MB) cards became available three months later. The SD Association, which was headquartered in San Ramon, California, United States, then had 30 member companies and product manufacturers that made interoperable memory cards and devices. Īt the 2000 Consumer Electronics Show (CES), the three companies announced the creation of the SD Association (SDA) to promote SD cards. For this reason, the letter "D" is styled to resemble an optical disc. The trademarked SD logo was originally developed for the Super Density Disc, which was the unsuccessful Toshiba entry in the DVD format war. Toshiba hoped the SD card’s DRM would encourage music suppliers concerned about piracy to use SD cards. SD was designed to compete with the Memory Stick, a flash storage format with DRM Sony had released the year before. The card was derived from the MultiMediaCard (MMC) and provided digital rights management (DRM) based on the Secure Digital Music Initiative (SDMI) standard and a high memory density. In 1999, SanDisk, Panasonic (Matsushita) and Toshiba agreed to develop and market the Secure Digital (SD) memory card. History 1999–2005: Creation and introduction of smaller formats It uses several SD-3C-owned trademarked logos to enforce compliance with its specifications and denote compatibility. As of 2023, the SDA has approximately 1,000 member companies. In January 2000, the companies formed the SD Association (SDA), a non-profit organization to create and promote SD Card standards. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property (IP) rights associated with SD memory cards and SD host-and-ancillary products. The standard was introduced in August 1999 by SanDisk, Panasonic (Matsushita) and Toshiba as an improvement on MultiMediaCards (MMCs). Secure Digital, officially abbreviated as SD, is a proprietary, non-volatile, flash memory card format the SD Association (SDA) developed for use in portable devices.
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Portable devices, such as digital cameras and mobile phones (including most smartphones)