The MK2 is now discontinued, and superseded by the MK3.
All Multi's and Quattros connected to a GX device and the internet can be programmed via Remote VEConfigure, without an MK3.
The aluminium cased Quattro and MultiPlus can be programmed via dip switches on the circuit board. Though it is almost certain your time would be better spent with the MK3 and VictronConnect.
The steel cased MultiPlus-II requires an MK3, or GX device and internet connection.
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