Gameboy 32KB to 4MB Custom Flash Cart (25+pcs)

$310.50$698.70 USD

Are you looking for a Gameboy flash cart with your own branding/logo with the ROM/RAM size you need? We’ve got just the service for you! We’ve assembled 5000+ carts with this service.

*** Not actually out of stock *** – You need to contact us at or on our Discord server to learn more or start the order process. 

Pricing 250pcs+:

  • 32KB ROM $10 each
  • 256KB ROM $11 each (with 32KB FRAM option add $3.3)
  • 512KB ROM $11.5 each (with 32KB FRAM option add $3.3)
  • 2MB ROM $14.5 each (with 32KB FRAM option add $4.4)
  • 4MB ROM $19.5 each (with 32KB FRAM option add $3.3)

For 100pcs+ add 50c each.
For 50pcs+, add $1 each.
For 25pcs+, add $2.3 each.

If you are happy to use an insideGadgets branded PCB, then the 250pc+ price can apply to 25pcs+.

Service details
We can write a ROM or save file to the flash cart, you can provide the ROM to us at a later date if required. Each board is individually tested by reading the ROM and comparing against the original, performing a write/read test on the FRAM and booting the game on a GBC for a few seconds.

We can also offer laser engraving on the PCB, text (all the same), incrementing number, one bit image, etc for 50c each PCB plus $40 setup.

The PCB is 0.8mm thickness, ENIG surface finish. The PCB will fit in a genuine Gameboy cartridge shell and most after market shells too. These carts are emulating MBC5 which works with games created using GB Studio.

You can choose from the following colours:
– Green
– Red
– Blue
– Yellow
– Black
– Purple
– White (add $30)
– Pink (add $20)

Time frame / Turnaround
The usual turnaround from full payment to order completion is approximately 5-6 weeks, the steps are:
– 1 week for the PCB fab to manufacturer the PCB
– 1 week for delivery to us
– 1 week build time (100-200 pcs a week depending on work load)
– 1-2 weeks just in case something unexpected happens, short on stock, PCB fab holidays, etc.
– 1 week delivery using DHL

You can choose shipping options as AusPost tracked (2-4 weeks) or DHL Express (4-7 working days). You may have to pay taxes/duties on the package.

Artwork / Logo
If you don’t require a logo and are happy to use our existing carts with our branding, you can skip this step and save 2 weeks waiting for PCBs.

We require the artwork before or at the time of your order and will provide a render of the PCB to show you how it might look like. We can place artwork on the front or back of the PCB. Generally the artwork should be kept simple as the silk screen process results can vary a bit, the silk screen can be white or black (we’ll have to confirm if the PCB fab can do black on request). We can also put the artwork as exposed metal if you would like a different look.

If you wish to play around with the artwork to see how it might look yourself, you can use EasyEDA to import a image, change the dimensions and placement. Here is a blank Gameboy flash cart board which you can open with EasyEDA before importing the image.

If you order more than 100pcs, we can either ship the full order all at once or continue to send 100-200pcs a week to you.

Other notes
 The 256KB and 512KB carts are programmed via the audio pin and thus the flash chip can’t be re-written using a Gameboy (e.g if you wanted to do high score saving without using save memory).

SKU: N/A Category:

Additional information

Weight 2000 g


ROM/RAM option

32KB ROM, 256KB ROM, 256KB ROM with 32KB FRAM, 512KB ROM, 512KB ROM with 32KB FRAM, 2MB ROM, 2MB ROM with 32KB FRAM, 4MB ROM, 4MB ROM with 32KB FRAM


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