1 SCM system can be completed within a file MicroSD card
2 Support Micro SD Card, Micro SDHC card (high speed card)
3 Level conversion circuit board that can interface level is 5V or 3.3V
4 Power supply is 4.5V ~ 5.5V, 3.3V voltage regulator circuit board
5 Communications interface is a standard SPI interface
6 4 M2 screws positioning holes for easy installation