xpansion Board?

The Roland SR-JV80-06 Dance Expansion Board is an expansion board for the Roland JV-80 Synthesizer Module. It contains a variety of samples and sounds specifically geared towards dance music production. It includes a range of basses, drums, leads, and effects, as well as a variety of pre-programmed patterns. The board is also compatible with the Roland JV-1080 and JV-2080 Synthesizer Modules.