Keep your MacBook® Air charged and ready for use with this Apple® MagSafe 2 MD592LL/A power adapter that features a magnetic DC connector that easily disconnects to help protect your laptop and prevent the cable from fraying or weakening.
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The is the NEW 45w Magsafe 2 adapter for MacBook Air. Save yourself a headache and make sure your MBA uses the Magsafe "2" and not the original Magsafe with the "L" connector that attaches to your laptop. This one has a wider connector and will not fit in Macbook Airs made prior to appx. June 2012 (not exactly sure when the change occured). At the time of this writing, no photo for this item was available on BestBuy.com and I did not realize they had changed the connectors and had to return this one because it simply would not fit my late 2011 MBA.
What's great about it: Apple OEM
What's not so great: Make sure it's the correct one