The Texas Instruments PC-100C Thermal Print Security Cradle is a rare vintage piece from the United States. It is specifically designed for use with Texas Instruments products and is ideal for collectors or enthusiasts of vintage computing technology. The security cradle adds an extra layer of protection to thermal prints, making it a unique and valuable addition to any vintage computing collection. The light turns on when its plugged in and turned on. Unsure if it work beyond that. Comes with all pictured.. Original box, owners manual, paperwork, and extra thermal printer tape. Selling as is. Enjoy!