This expansion card is an evolution of the [[Symbiface 3]].
[[File:RSF3Poulette73-rsf3.jpg]] [[File:Poulette73-rsf3RSF3.jpg|600px]]
<br>
*SE-One: ON/OFF. Allows you to activate the emulation of the MSX SE-One card, which offers an MP3 decoder (with playback of other formats such as AAC, MP4, M4A, WMA, WAV, MID, OGG) + an FM radio.
*Symbiface II: ON/OFF. Allows you to activate or not the compatibility mode with the Symbiface II.
*Multiplay mouseMouse: ON/OFF. Allows you to enable or disable USB mouse support.
*GMT time zone: to set the time offset, based on the time zone.
*Emulation of older interfaces like the [[Amstrad SSA-1 Speech Synthesizer]], the [[Amdrum]], and the [[Digiblaster]]. With programs for each of these interfaces to use them.
*Emulation of all the functionalities ([[SID]], MP3, [[MIDI]], FM radio, web radio) of the Amsdap SE-One.
*A "System Information" application which summarizes the detailed information of the RSF3 (firmware version, Wifi and network information, activated rombank and list of roms with their positions, the activation status/or not of the M4, the SE -One, CPC 464 hack, MultiplayMouse, SF2[[Symbiface II]], etc.
*A drawing application for the stylus.
*A “Post-it” application to write whatever you want, like a memory aid.
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: