This product is wrongly described. It is not "Universal", but merely plugs into a 12V car outlet, or to a proprietary socket on a plane that is no longer seen on modern planes - planes now offer regular 110/220V sockets. The transformer does what it can do, but to attribute "Universal" to it without the ability to transform regular 110/220V to the DC power needed by a notebook makes it a very disappointing purchase.
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