EZ-FLASH Junior for GB/GBC on GBA/GBA SP Features: GB/GBC game copy and play Instant load the game Real time clock Fast reset to menu Maximum game: 64Mbits Maximum save: 1Mbits Mapper supports:MBC1,MBC2,MBC3,MBC5 Support Gameboy, Gameboy Pocket, Gameboy Color, Gameboy Advance/SP, even with backlit mods and rechargeable batteries. System on chip level recovery mode, prevent upgrade dead Support FAT32 4-32GB SD card Firmware and kernel both are upgradable Replaceable battery design