According to the manufacturer there are certain home cartridge systems that will require this adapter in order to function properly. You are welcome to buy this adapter at the time you purchase your Super MVS Convertor II or you can always order it later if your system exhibits compatibility issues without this adapter.

Most AES systems will not require this adapter. The Super MVS Convertor II was tested with several versions of Japanese and English AES systems and it worked perfectly fine without this adapter. However, the PAL & Korean version AES systems have not yet been tested with the Super MVS Convertor II and may require this adapter.