The Chicony A18-045N1A 45W USB-C Laptop Charger is a genuine, untested unit designed to power laptops with a voltage of 20V and an output current of 2.25A. The black charger comes with a manufacturer warranty of 1 year and is compatible with various brands and models, specifically the A18-045N1A model. This AC/Standard unit is a reliable and efficient option for charging laptops quickly and effectively.