A1304 A1237 A1369 A1370 / MacBook Air 11" 13" 2008-2011. Input : 100-240V 50/60Hz, Output : 14.5V 3.1A 45w. MS1 L tip 45W. MacBook Air (Mid 2009). MacBook Air (Late 2008). Note:This is the first generation of power adapter, not the second generation.
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