Taken from a working RD-600. It is compatiable with the RD-600 and RD-800, and potentially other keyboards.
USED Roland HP207E amplifier unit # 73346856
Roland Keyboard Style Disk - Floppy Disk Styles for Roland Keyboard Players
Roland Keyboard Style Disk - Floppy Disk Styles for Roland Keyboards - COUNTRY
Damper Sustain Pedal Foot Switch for Yamaha Casio Roland Keyboard Winholder UK
Sustain Foot Pedal with Polarity Switch for Yamaha Casio Roland Keyboard Piano
