Taken from a working RD-600. It is compatiable with the RD-600 and RD-800, and potentially other keyboards.
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
Piano Sustain Foot Damper Pedal Switch For Casio Yamaha Roland Keyboard Black UK
Damper Sustain Pedal Foot Switch for Electric Yamaha Roland Keyboard WinHolder
