This expansion card is an evolution of the [[Symbiface 3]].
[[File:RSF3Poulette73-rsf3.jpg]] [[File:Poulette73-rsf3RSF3.jpg|600px]]
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TMTLOGIC discontinued the RSF3, but continues with the RSF3 Lite, which offers almost the same features (the ones removed from the original RSF3 were ultimately little used). [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/symbiface-iii-in-development/msg249062/#msg249062 Source]
[[File:RSF3-LITE TOP LAYOUT.jpg|500px]]
Characteristics, in comparaison with the RSF3: