The 65W blue pin oval shape charger is a standard power adapter designed for HP laptops, delivering an output of 19.5V and 3.33A through a 4.5mm x 3.0mm blue-tipped barrel connector.SpecificationsPower Output: 65W (19.5V, 3.33A)Connector Type: 4.5mm x 3.0mm barrel plug with a blue center pinInput Voltage: 100-240V (worldwide compatible)Design: Slim, rounded oval brick casingCompatibilityHP Series: Pavilion, Spectre x360, Envy x360, EliteBook, ProBook, and Stream notebooks requiring 65W blue-tip power.