*512KB rewriteable ROM. You can upload up to 32 ROMs, which are persistent. You can also use the ROM space as an additional RAM extension. ROMs can be switched on or off via switches or via software.
*PS/2 mouse connector. This makes it possible to connect wireless and optical mice to your CPC.
*Real time clock, which is fully PC compatible and (as seen on the photo) provides additional 50 byte persistent RAM (although the SYMBiFACE II homepage incorrectly advertises it as 128 byte persistent RAM), which can be used to store config data.
== ROM-Manager ==