Nintendo 3DS Development Cartridge Save Sub-boards – Reproduction – CTR-SUB

These are reproduction save sub-boards designed for use with Nintendo 3DS development cartridges.

Each board has been hand-built using salvaged components sourced from damaged cartridges obtained through a professional recycler. All components have been thoroughly cleaned, inspected, and assembled with care to ensure full compatibility and reliability.

The boards have been fully tested for functionality with original Nintendo development cartridges. I have erased all the chips using the IS-CTR development kit. 

Available Save Types:

• 1M EEPROM
• 4M EEPROM

These boards are ideal for developers, restorers, and enthusiasts looking to replace missing or non-functional save hardware on development cartridges or debugging setups.

Please Note:
The price is for one save board only. Development cartridges and emulator probes shown in photos are for demonstration purposes and are not included.

Condition:
Photos are a representation of the item’s condition—the exact board you receive may vary slightly in appearance due to hand assembly.
All boards are individually tested and verified to ensure correct operation.

3-Month Return-to-Base (RTB) Warranty Included.