Features:

Supports Micro SD cards, Micro SDHC card (Micro SD<=2G, Mirco SDHC<=32G).
Input Voltage: 4.5V ~ 5.5V (3.3V voltage regulator circuit board)
Recommended Input Voltage: 5V
Input Current: 0.2mA ~ 200mA
Logic Voltage: 3.3V, 5V
Interface: SPI
Pin Number: 6 Pin
Screw Size: M2
Size: 42mm x 24mm x 12mm

Pinout:
GND    ground
VCC    power supply
MISO   SPI bus
MOSI   SPI bus
SCK     SPI bus
CS       Chip select signal pin