Rosefray 18.5v3.5a 65W AC Adapter Power Supply for HP EliteBook Revolve 810 820 840 850 725 745 755 G1 G2; EliteBook Folio 9470m 9480m; HP ProBook 430 G1 G2 440 450 455 645 650 655 Power Specs : Input Volt Range: AC 100-240V 50-60Hz (Worldwide AC Input) / Output: 18.5V 3.5A 65W Connecter size: 7.4/5.0mm Compatibility : Please see full list of compatible models in the Product Description. Check Connector Photo to Ensure Compatibility Package Include: 1 x Power Adapter & 1 x US Power Cord ( Outlet: 3-prong ) About Rosefray:Powering Millions of Laptops, Tablets and Electronic Gadgets and a go-to brand for premium replacement chargers and accessories since 2005. Rosefray chargers manufactured with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating . CE/FCC/RoHS certified. Warranty: 30 Days Money Back Guarantee / 24 Months - Free Exchange ,Please contact us with any questions or concerns .