The system supports: * USB flash memory/USB flash players/memory cards (SD/SDHC) * USB 1.1 or USB 2.0 The file system can be FAT16 or FAT32. Apart from that, there are some limitations on the number of files/folders in the device: * Directory nesting: up to a maximum of 8 levels * Number of albums/ folders: maximum 99 * Number of tracks/titles: maximum 999