Input: 100 - 240V, 50 - 60Hz Output: 20V 4.25A 85W. WARNING!!! This is 85W, MagSafe 2 and T Tip. Please check if your device is compatible with this adapter before purchasing. Replacement Mac book charger made with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating . Mac book Pro (Retina, 15-inch, Mid 2015), Mac book Pro (Retina, 15-inch, Mid 2014), Mac book Pro (Retina, 15-inch, Late 2013), Mac book Pro (Retina, 15-inch, Early 2013), Mac book Pro (Retina, Mid 2012). Compatible with Mac Book Pro 13 inch 15 inch 17 inch; Compatible Model: Mac Book Pro Retina A1424, A1398, A1343, A1174, A1290, A1222, A1172 Models Mac and more. This adapter provides full protection from damage without errors due to over voltage, over current, short circuit, and over temperature. It has high hardness, high thermal resistance and synchronous rectification techniques that improve charging efficiency. Package Includes: 1 x Macbook Charger/Adapter 1 x Power Cord All product information_qudd