According to that product info, it won't work with multicarts.
If you want to play multicarts go with the previous version , the black one.
I have just ordered one off the new blue ones , i will post my finding here if anyone is interested.
According to that product info, it won't work with multicarts.
My Neo mvs magic key has arrived now , i have tested it with the 7 mvs games i have and it works great.
No sound or graphic glitches as far as i can see.
The region switch and cheats menu is a really nice feature.
The only complaint i have is the color of the adapter , why did they make it blue and not black to match the console.
The games i have tested so far is
Metal slug 1 to 4
Fatal fury
world heroes
Samurai shodown 2