Product Details: Joey Jr. Is a portable GB game card burning tool, specially designed for game enthusiasts. It supports the editing and management for ROM of GB, GBC and for GBA games. With USB connectivity, it offers plug-in functionality, enabling users to easily test self-made games and maintain ink cartridge data. Its compact size makes it easy to carry and suitable for use anytime and anywhere. Characteristics File management: Just like a USB drive, use the computer's file manager to support direct file operations on the ink cartridge. Game backup: Allows you to back up games from for GB, GBC and ffor GBA cartridges to your local PC, ensuring the security of game data. Game writing: Supports writing games to third-party rewrite cartridges, making game testing convenient. Save type support: Compatible with read and write EEPROM, SRAM, FRAM and FLASH save types to meet various requirements. GB camera support: Allows you to view images directly from the GB camera, which can be displayed as bitmap files on your computer for easy management and preservation of precious game images. High transfer speed The standby speed of for GBA games is approximately 710 kb per second The backup speed of GB/GBC games is approximately 330 kb per second The flash speed of GBA games is approximately 355 kb per second The flash speed of GB/GBC games is approximately 90 kb per second Firmware Upgrade: Compatible with FlashGBX and Joeygui software, allowing users to easily upgrade the firmware. Emulator compatibility: Supports running games in any USB-compatible GB emulator cartridge and allows game progress to be restored to the cartridge, thus providing a seamless gaming experience.