The IBM 5140 PC Convertible is a vintage portable computer laptop that has been tested and confirmed to work. This classic IBM machine is compatible with IBM products and is a sought-after collector's item for vintage computing enthusiasts. With its retro design and functionality, this laptop offers a unique glimpse into the world of computing from the past. Ideal for those looking to experience the nostalgia of older technology or for those in need of a reliable vintage laptop for specific tasks.