Kurzweil RMB-26 Daughter Board

RMB-26 Daughter Board description:

The Kurzweil RMB-26 Daughter Board is required to install any optional ROM blocks into the K2600. Only one RMB-26 Daughter Board is required and holds up to 4 ROM blocks. NOTE: The Vintage Electric Pianos (ROM 4) block and General MIDI (ROM 5) block fit in the same Daughter Board location. You can have either ROM 4 or ROM 5 installed at this location, but not both at the same time. The RMB-26 is a user installable item.