This product is a lot of 10 Lenovo 45W PA-1450-55LL chargers designed for various Lenovo laptop models including Ideapad 320-15ABR, Yoga 310-14, and B50-10. The black chargers have a voltage of 20V and an output current of 2.25A, providing a maximum output power of 45W. Made in China, these AC/standard chargers are compatible with Lenovo's Ideapad and Yoga product lines, offering a reliable power source for your Lenovo laptops.