Slot Connection: For MX4SIO (Memory expansion For SIO) is an adapter for that allows you to connect an Storage to a memory slot.
Dedicated Function: Storage is not a replacement for a memory , it is only an adapter and not a converter to make an Storage into a memory .
Recognition Limitation: Storage and memory work in a similar way but not the same, the console can't recognize Storage , not all Storage Cards can be recognized.
Software Requirements: Only specially developed homebrew software can access Storage Cards, although this software is currently in the development stage (such as for OPL).
Professional: For SIO is the name of the interface chip for In for 2, it is called for SIO2. Professional for Storage adapter, easy to use.