About this item Input: AC 100-240V 50-60Hz, Output: 14.85V 3.05A 45W. Knowing what specific Mac model you have is important. Please check out carefully before purchasing. Replacement charger AC adapter for MacBook Air 11' and 13.3' after 2012 with Model: A1435, A1465, A1466. Compatible with Mac Air 11 and 13.3: MD223, MD224, MD231, MD232, MD711, MD712, MD760, MD761, JVM2, JVP2, JVE2, JVG2, MQD32, 42, 52. Manufactured with the highest quality materials and include multiple smart features safeguarding against over current, over voltage, overload, short-circuit protection, and auto recovery, CE/FCC/RoHS certified. Dimensions: 5.24 x 5.24 x 0.67 inches.