Specification for Replacement Mac Book Charger: It is the first generation of charger 60 L-Type, not the second. Input: AC 100-240V,1.5A 50-60Hz Output: DC 16.5V-3.65A. | Suitable for Mac Book Models: Fits A1344, A1330, A1342, A1278, A1185, A1184, A1181,A1435. Mac Book Pro (13-inch, Mid 2012), Mac Book Pro (13-inch, Late 2011), Mac Book Pro (13-inch, Early 2011), Mac Book Pro (13-inch, Mid 2010), Mac Book pro(13-inch, Mid 2010), Mac Book pro(13-inch, Late 2009) | Function: A magnetic connector ensures your power cable will disconnect harmlessly if it experiences undue strain and helps prevent fraying or weakening of the cables over time. Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy cable storage. | Protection Safely: Certificated with UL/CE/FCC/RoHS standard, protect your equipment from over current, over voltage, over load, short-circuit. | After-Sales Service: If anything goes wrong with the item, please do not hesitate to send email or contact us. The E- mail case will be reply within 24 hours after you sent to us.