Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Power supply woes

I bought this item largely due to a review by Joel Kolstad which said that the power adapter "works anywhere in the world (100-240V)". This could not be farther from the truth. The power adapter is the same as the older version (it is a "wall wart"), and only works with 120 volts of AC. I tried using an older version device (which has the exact same power supply) with 240 volt power, and the power supply exploded and smoke poured from the "brick". I simply cannot fathom why D-link hubs don't have a power supply that works all over the world.If you only intend to use the D-link in the United States, then you probably won't have a problem. But if you intend to use it in other countries, beware!