...and not via the TV Game Computer Cartridge Converter? My System Card 2.1 works perfectly fine with both converters-
Pro and con with Turbo PC-Henshin: seemingly works with every single HuCard/TurboChip, but sticks out of the card slot too far and is ugly.
Pro and con with TV Game Computer Cartridge Converter: does not work with every HuCard/TurboChip, but is aesthetically better in the card slot.