Most Computer, Game Consoles, Test Equipment items are vintage. Minimal testing, if any, has been done. They are not offered as perfect, as they are up to 50 years old. Early electronics, microcomputers were known to have some faults requiring some technical knowledge to repair. These items are sold to collectors and technical experts in AS-IS condition. Please do not buy this item if you do not accept these condition details. I welcome questions. Thanks Dave