GPK Systems&reg; Slim Ac Adapter with USB Port for Macbook and 13-inch Macbook Pro Mc516ll/a Md313ll/a Mb466ll/a Mc207ll/a Mc240ll/a Md314ll/a Mb466ll/a Mb467ll/a Ma472ll/a Input: DC 110V - 240V Output: 16.5V 3.65A 60 Watt LED indicator shows you when your computer is charging and when it is fully charged SERVICE & SUPPORT 1 YEAR WARRANTY Compatible only with Macbook and 13-inch Macbook Pro featuring power port.