The Genuine HP 45W AC Power Charger is designed specifically for HP Notebook Laptop 15-ay127cl HSTNN-DA40. It is compatible with various HP models such as Pavilion x360, Presario, Mini, OmniBook, ProBook, and more. The charger has a black color, a 45W output wattage, and 2.31A output current. It is a reliable and efficient power source for your HP laptop, backed by a 1-year manufacturer warranty. The product is manufactured in China and includes a California Proposition 65 warning regarding potential health risks associated with the product.