INPUT: AC 100-240V, 1.5A 50-60Hz; OUTPUT: DC 18.5V-4.6A 85W, Note: First generation of power adapter Extensive Compatibility: The compatible models of the adapter are A1150, A1151, A1343, A1344A1330A1342A1172A1175, A1181A1184A1286 A1244A1278A1330MA538LL / A661-0443661-4269661-4485661-4259661-4339.The above numbers are for Mac Book Pro 15 and 17 inch laptops(before 2012). You will get a 85W Charger with a 6ft Power Cord, we also provide a 12-month quality guarantee service. Any questions about our Charger, contact us for fast support, we will reply within 12 hours. Easily Portable & Foldable PlugOur charger is lighter and smaller, and the plug can be folded 90°, you can even put the charger in the pocket of the clothes you wear with you and take it with you easily. This charger will take less space of your bag, easy to portable and use. Use it with confidence anytime, anywhere! High Quality & Safe Protection Certified: CE/ROHS Certified for Security,100% Compatibil