This is a rare vintage IBM PCjr memory expansion and parallel printer attachment set, perfect for collectors and enthusiasts of vintage computing. The set includes two units, both made in the United States, and is compatible with IBM PCjr computers. These memory and printer attachment units are a great addition to any vintage computing collection, and are sure to impress with their unique design and functionality. Don't miss out on this opportunity to own a piece of computing history.No returns on As Is products.