The model number is "AN-500R". Operation has been confirmed. The belt has been replaced with a Mobilon band. There is discoloration and minor scratches. Since the belt has been replaced, both cassette and disc games can be played immediately. Operation has been confirmed with 5 or more discs, but discs in poor condition were not read. When the attachment cable is attached to the original Famicom adapter (850mAH), the Famicom AC adapter transforms into an AC adapter for the Twin Famicom. Twin Famicom main unit AC adapter AV cable AC adapter attachment cable This is a set of 4 items.