I don't think the Adaptor sold by KC Trade is the genuine Apple product. The adaptor is lighter and is made of poor material. The whole thing doesn't have any quality which the Apple product usually have. I bought it 2 months ago, but the one of the magnetic contacting points has retracted and it does not connect well every time I use it. If I am not planning to retire this old MacBook, I'll go to the Apple store and spend 40 bucks more for a reliable one!