Most impressive
What supports the MVS cart while it is pluged in to the converter?
"In My Humble Opinion" my CMVS does have memory card support. Some do, some don't. The 2 slots all do as the reader is part of the PCB, not that its a thing worth paying hundreds of dollars for anyway. Maybe when you want to get all the endings in a KOF game in one sitting, but that's about all I use it for.