The microSD card is based on TransFlash, which was developed by SanDisk in cooperation with Motorola and is the world's smallest flash memory card form factor. SanDisk's TransFlash cards were recently adopted by the SD Card Association (SDA) and renamed "microSD."

Not all devices support MicroSDHC cards. Please check your device manufacturer or email contact@iundersell.com for details. To ensure compatibility, look for the MicroSD logo on the product or packaging of your Card Reader, Cell phone, Camera, Your PDA, or any device before uses.