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High Score! Tech Supply

BennVenn MBC3000 Dual (V4) RTC reflashable Gameboy cartridge

BennVenn MBC3000 Dual (V4) RTC reflashable Gameboy cartridge

Regular price $34.00 USD
Regular price Sale price $34.00 USD
Sale Sold out
Mapper/flash options

* RESTOCK UPDATE 3/23/24: All stock SOLD OUT!

NOTICE: PLEASE READ ALL PRODUCT DETAILS CAREFULLY!  DETAILS FOR GETTING A CUSTOM ROM FLASHED TO YOUR CARTRIDGE ARE BELOW!

Product details:
  • Load and play your own Gameboy and Gameboy Color Game ROM's, ideal for Pokemon games, Pokemon ROM hacks, or LSDJ!
  • Can be used with the Joey Jr. cartridge flasher, sold HERE!
  • Supports real-time clock events (RTC) - Battery included!
  • Utilizes FRAM for save data - No battery required for saves!
  • Can hold 2 ROM's, 2 save files, and 2 RTC (clock) instances on a single cartridge!
  • MBC3 and MBC5 modes supported, can switch ROM's and modes via DIP switches (Instructions pictured, also detailed below)
  • Up to 8 MB of ROM storage accessible in MBC5 mode - Use for storing 1 game ROM
  • 2x 4 MB of ROM storage accessible in MBC3 mode - Use for storing 2 game ROM's
  • Up to 128 KB of FRAM for save data in MBC5 mode (i.e. LSDJ)
  • 2x 64 KB FRAM available in MBC3/30 mode - NOTE: RTC enabled in MBC3 mode

DIP switch instructions:

  • DIP 1 - Mapper mode:
    • OFF = MBC3
    • ON = MBC5
  • DIP 2 - RTC/clock:
    • OFF = RTC enabled (64 KB FRAM + RTC)
    • ON = RTC disabled, but all 128 KB FRAM addressable for saves (usable with LSDJ and other such ROM's)
  • DIP 3 (Mode A) - When in MBC3 mode (DIP 1 OFF):
    • OFF = ROM bank 1 selected (4 MB), FRAM bank 1 selected (64 KB)
    • ON = ROM bank 2 selected (4 MB), FRAM bank 2 selected (64 KB)
  • DIP 3 (Mode B) - When in MBC5 mode (DIP 1 ON):
    • OFF = ROM bank 1 selected (4 MB, or up to ALL 8 MB), FRAM bank 1 selected (64 KB, or up to all 128 KB), can only fit 1 game on cartridge in 8 MB + 128 KB configuration
    • ON = ROM bank 2 selected (4 MB), FRAM bank 2 selected (64 KB)

NOTICES:

  • To flash this cartridge yourself, purchase a Joey Jr. HERE!
  • If using a Joey Jr. to flash this cartridge yourself, you MUST update your Joey Jr. to the latest firmware, found HERE!
  • If you selected a "...MBC3/5 - Flash my ROM" option above, please email us at support@highscoretech.com immediately after placing your order to let us know your FULL NAME and ORDER NUMBER, and to provide us your game ROM file.  THE ACTUAL GAME ROM FILE MUST BE SENT.  WE DO NOT AND CANNOT PROVIDE ROM FILES!  Thank you!
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