Gameboy 1MB, 32KB FRAM Flash Cart (Ultra low power, Custom boot logo, MBC1 mode)

$24.00 USD

This re-programmable Flash Cartridge is like our 2MB, 32KB FRAM cart except it supports 1MB MBC1 ROM mode. Allows you to re-flash it with any flasher like GBxCart RW that supports the M29F160F chip. Designed and made in Australia.

Need to flash a game on this cart? Make sure to grab our GBxCart Flasher.

Includes a clear reproduction GB cart shell (separately). Looking for other colour cart shells? Check our DMG or GBC high quality cart shell listings.

Questions? Jump on our Discord server where we and other users can help you or contact us via Twitter.

Build to order (usually 1-2 weeks before it ships)


Works with GB Studio v1.1.0+ with saving if you wish to develop your own game. Check this list of Gameboy games to see the ROM/RAM size and MBC type your game will have, you would be looking for MBC5 games but most MBC3 games should work.

MBC1 games that won’t work: Any that needs more than 8KB RAM or more than 1MB of ROM. Games must be flashed on MBC5 mode first.

Updated v1.1 PCB has a switch to change between MBC5 or MBC1 mode instead of bridging a pad with solder.

– Allows for a custom boot logo which takes 16KB, if your game takes up the full 512KB flash, the last 16KB bank will be overwritten. The custom boot logo works on the DMG (only 05 tested, 03 not working), Pocket, GBC (05, 03) and GBA 40pin (CPU AGB). The original boot logo will appear on all other devices. Some 32KB games might not work. Note: If you power off and power on the GB too quickly, the custom boot logo might not be displayed. Seems to affect the DMG the most. Doesn’t boot at all on the Analogue Pocket if the custom boot logo is enabled.
– Allows for 8KB RAM locking useful for MBC1 games like Donkey Kong Country 3.
– Allows for MBC1 ROM banking – requests for bank 0 gives bank 1, useful for games like the original Zelda – Link’s Awakening.
– Allows for MBC1 1MB ROM mode for hacks like Metroid 2 Colourised

This cart works on every Gameboy system – GB, MGB, GBC, GBA, GBA SP and the Game Boy Player. It works on the aPocket but if you enable the custom boot logo, it will show an error. It should work on the N64 transfer pack for Pokemon Stadium. Games that require more than 1MB of ROM won’t work.

Comes in a generic Gameboy cartridge. Each unit is assembled in house and is tested on a Gameboy Advance.

ROM: 1MB Flash
FRAM: 32KB (FM18W08)
MBC: MBC5 (with MBC1 mode by bridging 2 pads) (with ROM banking range 0x2000 – 0x3000 to allow for some MBC3/1 games)

The PCB finish is ENIG.

8KB Ram Lock
Bridge this pad for games like DK2/DK3 that can corrupt save data.

Additional information

Weight 26 g
Flash carts

Custom boot logo, Gameboy carts, GB Studio support, Low power, MBC1 support, MBC5 support, Saving supported


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