Running out of memory space in your Arduino project? The microSD Shield equips your Arduino with mass-storage capability, so you can use it for data-logging or other related projects.
We don't know what you're trying to do with your Arduino to make it run out of memory, but no matter - here's a solution: The SparkFun microSD Shield. Add mass-storage capacity to your Arduino using the tiny microSD format card!
We're now selling the updated version, which include a voltage converter chip on-board that converts the Arduino 5V signals to 3.3V signals in accordance with SD specifications. No more 'blown up' SD cards!