Incredibly small - just 11mm by 15mm and 1mm thick - SanDisk microSD / TransFlash cards meet the needs of next generation, feature-rich mobile phones and devices by delivering manufacturing and aftermarket flexibility, and easy transportability of end user data. MicroSD / TransFlash is designed for new mobile phones that are compact yet fully-featured with storage-intensive multimedia applications such as digital cameras, video capture and playback, MP3 players, video games, personal organizers, Multimedia Message Service (MMS), email and voicemail capabilities.

TransFlash was invented by SanDisk, and the microSD / TransFlash card is the open industry standard and is fully compatible and interoperable with TransFlash.