ADAM-5030 is a 2-slot secure digital card storage module that provides 2 USB ports and 2 SD slots. It is fully compliant with USB 2.0 and FAT16 and is also low power consuming, at only 0.5W. According the volume of SD Card, you can extend the memory of your controller up 2 GB. Unlike commercial modules, it is very rugged, and has a very long lifecycle.