Avantages et inconvénients tels que décrits dans le manuel   :
The RS-10 Expander module is an economical way of increasing the size and capabilities of your existing RS-10.
It provides 6 additional direct access controller switches (SW10-SW15) as well as 2 additional presets per bank. 
Only RS-10’s with EX software are able to utilize the expander module. All RS-10’s can be upgraded to the EX software.
Due to limitations in RS-10 memory, when using the Expander, 22 banks of 6 presets are available (standard RS-10’s are 32 banks of 4 presets).
                                        
                                    
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