The microSD format was introduced by SanDisk at CeBIT in 2004, initially under the identify T-Flash, later rebranded as TransFlash or TF. At the March 2003 CeBIT commerce show, SanDisk introduced and demonstrated the miniSD card format. The SD Association (SDA) adopted miniSD later that 12 months as a small-type-factor extension to the SD card normal, supposed primarily to be used in cell phones. In 1994, slots game SanDisk introduced the CompactFlash (CF) format, one among the primary successful flash memory card varieties.

In January 2009, the SDA launched the Secure Digital extended Capacity (SDXC) format, free slots online Best online Slots (just click the up coming site) supporting as much as 2 TB of storage and switch speeds as much as 300 MB/s. The Secure Digital Ultra Capacity (SDUC) specification, announced in 2018, expanded most capability to 128 TB and increased theoretical switch speeds to 985 MB/s. This includes a redefinition of the Card-Specific Data (CSD) register (for details, see § Storage capability calculations). Along with specifying maximum storage limits, these standards additionally outline preferred file systems for formatting playing cards.

In early 2000, the first business SD playing cards offering eight MB of storage have been released, with bigger capability versions following shortly after. By 2011, manufacturers offered SDXC playing cards in sixty four and 128 GB capacities, with some models supporting UHS Speed Class 10 and quicker. The first SDXC playing cards appeared in 2010, with early models providing capacities of 32 to 64 GB and skim/write speeds of a number of hundred megabits per second.

SDHC-suitable gadgets are required to help older SDSC playing cards. While technically progressive, MMC adoption was gradual, and even Nokia was slow to integrate help for it into its cellular devices. To address these challenges, SanDisk partnered Free Spins with Bonus Siemens and Free slots Nokia in 1996 to develop a new postage stamp-sized memory card called the MultiMediaCard (MMC). However, the late nineties saw a proliferation of proprietary formats equivalent to Sony's Memory Stick and the xD-Picture Card from Olympus and Fujifilm, leading to a fragmented memory card market.

They stay compatible with most SD-succesful units but have been largely superseded by higher-capacity formats.