Micro SD Reader - Module
Add some data storage to your project with this microSD card reader module. This module uses SPI protocol to connect to a microcontroller and has on-board level shifters, so it can be used with 3.3V or 5V devices.
This device is compatible only with FAT16 formatted microSD cards, which gives you a maximum size of 2GB . You can purchase a 1GB microSD card here.