The Slim 170W Charger AC Power Adapter for Lenovo ThinkPad with a Rectangle Tip is a reliable and efficient power source for your laptop. Designed for IBM and Lenovo brands, this black adapter provides a voltage of 20V and an output current of 8.5A, delivering a maximum output power of 170W. Compatible with various Lenovo ThinkPad models, this adapter is a convenient and essential accessory for keeping your laptop powered up and ready to use. Made in China, this unit is a high-quality product that ensures compatibility and efficient performance for your Lenovo device.