The 0B47040 Lenovo ThinkPad 45W AC Adapter is a reliable power supply that is compatible with various ThinkPad models. It ensures a stable and efficient charging experience, keeping your laptop powered up and ready for use. Its compact design and long power cord make it convenient for travel or everyday use. With its high-quality construction and built-in surge protection, it offers dependable performance and protection for your ThinkPad device.