Negative Positive
Title: good only for two prong connections
Review: This device is excellent, if you have a laptop with a two prong connector. It, however, will not work, if your laptop has a three prong connector for the power adapter. There is nothing on Amazon's site or on J&R's site that indicates that this device is for the two pronged connectors. I would think that most new laptops, like my new one, has a three prong connector. J&R dragged its feet, when I asked for a refund.
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