Yes, it works fine on an emulator.
I somehow think, that my C64 is something of an oddball. It seems to be manufactured, when they threw together parts from different revisions to meet the demand.
I was gifted it on christmas '87 and it has the dark grey-brownish case of the old C64 with the light-grey keys of the C64 II. IIRC, my parents bought it from Data Becker.
The SD2IEC seems to be from ncsystems.eu.