This is a set of the Famicom Disk System main unit and RAM adapter. This item has been maintained. The rubber belt has been replaced and repaired. - Head adjustment - Gear position adjustment - Motor speed adjustment - Greasing - Alcohol disinfection and cleaning Operation has been confirmed with multiple disk cards. Although it is a used item and has some scratches, there are no problems with its operation. Please refrain from purchasing if you are concerned about minor imperfections.