One word region mod it for a TG16 any ways.
Realy it's that simple given converters for it are too costly these days.
I recomend it since a jpn 3.0 super system card is "cheaper" and is more common compare to the u.s one.
Heck even a (arcade pro card) would work just as well too.
Just a suggestion if you wanna play any scd game since dracula x is one.
The,other option of corse is getting a duo-r or rx since is has the 3.0 built in all ready.