SID Sound Chip Interface, designed for the RC2014 and compatibles.

I first produced a SID soundchip interface back in 2003 for the Z80 based 'SAM Coupé' computer. Adapting the interface to work with modern Z80 based systems, in this case the RC2014 and similar which share the RC2014 I/O bus was a logical step to follow.

eBay