CASIO CZ-1000 VINTAGE SYNTHESIZER W 64 PATCH CARTRIDGE

via this auction

"ALSO INCLUDED IN THIS AUCTION IS A HARD-TO-FIND ORIGINAL CASIO DATA CARTRIDGE - WITH FOUR RED LIGHTS ON THE CARTRIDGE THAT ILLUMINATE TO INDICATE WHICH BANK IS BEING ACCESSED - CONTAINING FOUR BANKS OF SIXTEEN (64 TOTAL) OF GREAT CUSTOM SYNTHESIZER SOUNDS - STORE THOSE SOUNDS IN YOUR COMPUTER AND KEEP THE CARTRIDGE PLUGGED IN THE BACK FOR STORING YOUR NEW SOUNDS.

AN UNUSUAL FEATURE OF THE CASIO CZ-1000 IS THE ADDITION OF THE "STRAP BUTTONS" ON THE UNIT THAT ENABLE THE PLAYER TO ATTACH A GUITAR STRAP AND WEAR IT LIKE A GUITAR!"