BennVenn MBC3000 Dual (V4) RTC reflashable Gameboy cartridge

* STOCK UPDATE 3/27/25: BACK IN STOCK! NOTICE: PLEASE READ ALL PRODUCT DETAILS CAREFULLY!  DETAILS FOR GETTING A CUSTOM ROM FLASHED TO YOUR CARTRIDGE ARE BELOW! Load and play your own Gameboy and Gameboy Color game ROMs! Ideal for Pokemon games, Pokemon ROM hacks, some homebrew titles, and more! Product features: Cartridge holds 1 or 2 Gameboy or Gameboy Color game ROMs at a time Ideal for Pokemon games, Pokemon ROM hacks, or LSDJ! Can be used with the Joey Jr. cartridge flasher, sold HERE! Utilizes FRAM for save data - No battery required for saves! Real-time clock (RTC) allows for time-based events in applicable games to take place (battery required and included - CR1220 LiCB cell) Can hold up to 2 game ROMs, 2 save files, and 2 RTC (clock) instances on a single cartridge! MBC3 and MBC5 modes supported, can switch ROMs and modes via DIP switches (Shell must be opened - Instructions pictured, also detailed below) Up to 8 MB of ROM storage accessible in MBC5 mode - Use for storing 1