SD Card Socket Module, Arduino CompatibleFeatures:1. This SD Card module can make your SD application easier and simple.2. It is easily interfaced as a peripheral to your arduino sensor shield module.3. Through programming, you can read and write to the SD card using your arduino.4. SD Card can be used for MP3 Player, MCU/ARM system control, etc5. All SD SPI pins output, MOSI, SCK, MISO and CS.6. Support 5 Volt / 3.3 Volt Input