The unit powered on but started to smoke a little and was instantly shut off. The IBM 5150 Vintage External Floppy Disk Drive Unit is a rare and sought-after piece for collectors of vintage IBM computers. This external floppy disk drive is specifically designed to work with IBM computers, making it a valuable addition to any vintage computing enthusiast's collection. With its retro design and compatibility with IBM systems, this product offers a glimpse into the past of computing technology and allows users to experience the nostalgia of using a piece of computing history.