Another great invention from SanDisk, the microSD is about a quarter of the size of an SD card and is the newest standard of SD flash memory specifically designed for use with ultra-small mobile phones and other devices. Like the miniSD, the microSD/TransFlash is ideal for use in storing media-rich files such as music, videos, and photographs in compatible mobile phones Additional Storage These memory cards instantly add storage space to any device with a microSD card slot. Expanding the memory of your smartphone or tablet means you can capture more photos and video, carry more files, and enjoy your favorite music wherever you go. Durable Design Designed to withstand the toughest conditions, SanDisk microSD Cards are waterproof, shockproof, and X-ray proof. They can operate in temperatures ranging from -13 to 185 degrees, so you can enjoy mobile media in almost any climate. Even if your device doesn't survive, your SanDisk memory card will.