Kurzweil K2600R rack synthesizer with internal 1GB Seagate SCSI hard drive, max 128 MB RAM, KDFX effects, B3 Tone-wheel organ mode, and a custom SCSI Hard Drive Emulator with a removable 16GB SD card replacing the factory floppy drive, in good condition. I can also provide via email an archive of user and technical service PDF manuals.