Specifications:

Voltage: 4.5V~5.5V DC

Current: 0.2~200mA

Communication Interface: Standard SPI

Interface Voltage Level: 3.3V or 5V

Applicable card type: Micro SD Card(less than 2G), Micro SDHC Card(less than 32G)

Control Interface: (GND, 3V3, MISO, MOSI, CLK, CS), GND to ground, 3V3 is the power supply, MISO, MOSI, CLK for SPI bus, CS is the chip select signal pin

Micro SD card connector: Self bomb deck, easy card insertion