Flash uses MCU CH579 as the main control chip, and uses virtual serial port driver to emulate CH340 and extend to PC, making USB2.0 transmission speed reach the maximum. It can backup game ROM, backup/restore saved games and write ROM to supported flash cards. (Our flash cards or other clone/pirated cards). Cannot overwrite for-original Gameboy cartridges, only supports backup or restore game saves. If your game is saved to EEPROM or flash, then it will not work on any of these clone flash cards unless you patch it to use such as GBATA. games use 1Mbit to save, and most clone carts only have 256Kbit or 512Kbit of , so saving may not work properly. Check the save type your game uses here or read more about these issues here. For GB/ Flash Cart compatibility, please visit the website for the latest support. Some cloned games use different chip schemes, and we cannot that all cloned games support only them. Features: Backup game ROMs to PC Backup or restore game saves Rewrite Flash Cart to relive classic games Support firmware updates Compatible with FlashGBX GUI program Higher transfer speed, read three times faster than GBxCart RW Support for Gameboy, for Gameboy Color, for Gameboy Advance cartridges with automatic ROM size detection. Support /Flash/EEPROM of Gameboy Advance cartridges with automatic save type detection. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Transparent & Green Material:Acrylic+PCB Package Contents: 1 * Flash 1 * USB Cable 1 * Game Card