xpansion Board?

The Roland SR-JV80-99 Experience Expansion Board is a sound expansion board for Roland synthesizers and sound modules. It contains a collection of sounds, including multi-sampled acoustic instruments, classic synthesizer sounds, and a variety of effects. The board also includes a variety of rhythm and pattern-based sounds, such as basslines, drum grooves, and arpeggios. The board is compatible with several Roland models, including the JV-1080, JV-2080, and XV-5080.