Module features:
1. Support Micro SD card, Micro SDHC card (high speed card)
2. Onboard level shifting circuit, ie the interface level can be 5V or 3.3V
3. Power supply is 4.5V~5.5V, onboard 3.3V regulator circuit
4. Communication interface is standard SPI interface
5.4 M2 screw positioning holes for easy installation