The Genuine HP Laptop Charger AC Power Adapter 740015-002 is a reliable and high-quality power adapter specifically designed for HP laptops. It has a voltage of 19.5V and an output current of 2.31A, making it compatible with various HP Pavilion models. The black adapter comes as a single unit and is a genuine HP product, ensuring optimal performance and efficiency for charging your laptop. With this power adapter, you can trust that your laptop will receive the necessary power to function at its best.