Mini SD card is a portable device intended for use in mobile phones, mp3 players, cameras and other such gadgets.
The mini SD card was first developed by SCAN DISK, which joined the memory stick and the picture card. This card is significantly cost effective and is a lot cheaper than a memory stick of the same cost value.

The Mini SD Card is a relatively new addition to the Secure Digital media format. The Mini SD Card is a flash memory device that can hold digital information for a wide range of consumer electronic devices, but are usually used for mobile phones. All Mini SD Cards come equipped with an adapter that will fit all standard SD memory card slots. This way you can use Mini SD Cards in mobile phones and your digital camera or Mp3 player.

The Mini SD Card was introduced in 2003 at the Cebit Computer Expo by SanDisk Corporation, which is currently the largest manufacturer of flash memory. However, Mini SD Cards are made by a wide variety of technology companies and are all universally compatible.