This OEM Original Lenovo 90W AC Power Adapter is a high-quality power adapter that is perfect for your Lenovo ThinkPad laptops. It is compatible with a range of Lenovo ThinkPad models. The power adapter has a voltage of 20V, an output current of 4.5 A, and a max output power of 90W.It comes in a sleek black color and is designed for use with both IBM and Lenovo brands. You can be sure that this power adapter will provide your laptop with a reliable source of power.