Acard ARS-2020 Copy Smart User Manual page 30

Here are descriptions of "Emulation Setup" screen:
Cross this box to enable emulation mode.
Cross box to enable devices which to be emulated.
Click "Get Device Model" to get information of connected device
drive, the information will shown automatically. Just click "Update
Config" button to save your configuration.
Appendix D. SCSIDE utility
Real vendor name of connected device.
Real model name of connected device.
User-defined model name of connected device.
User-defined vendor name of connected device.
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Real revision of connected device.
User-defined revision of
connected device.