The product is a vintage 1989 Silicon Beach SuperCard for Macintosh, Version 1, which is sealed and new. It is a development tool designed for Macintosh computers by Silicon Beach. This unit is a single item manufactured in the United States, specifically in California. The vintage nature of the product adds to its collectible and historical value for enthusiasts of vintage computing. It is important to note that this product carries a California Prop 65 Warning for cancer and reproductive harm.