The OEM Lenovo 170W 20V 8.5A AC Adapter is a black power adapter designed for Lenovo laptops. It is compatible with various Lenovo ThinkPad models and provides a maximum output power of 45W. This adapter is ideal for charging and powering Lenovo laptops efficiently, with a bundle listing included for added convenience. The California Prop 65 Warning ensures safety and compliance with environmental regulations. Made by Lenovo, this AC adapter is a reliable and high-quality accessory for your laptop.