Apple 45W MagSafe Power Adapter w/Extension Cable A1244 (Bulk Packaging) Apple MagSafe Power Adapter A1244 (Old L Style connector) for MacBook Air - MB283LL/A - AC 100-240 V - 45 Watt 6 feet AC extension cord also provided. (3 prong) AC Input :100 ~ 240V, 50 ~ 60HZ ; DC Output : 14.5V, 3.1A Compatible with MacBook Air