... and SD card as the source of programming, playing with high stability.4. Upgrade contents of the memory card (or ... (32M-16GB)Built-in flash memory: (optional)USB: high speed USB 2.0 (Host)OSD LanguageChinese, English, Russian French, German, Italian ... , ticket agencies, lottery centers. Packing list: 55" self-service LCD digital Player, keys, English users manual, remote controller 55" Self-service ...