Bests & Worsts Reviews from Amazon

When doing a search on Amazon for a "powered USB 3.0 hub", this product appears. I purchased it and I should have been more thorough in both my reading comprehension and my decision-making. The device IS NOT POWERED by anything other than a USB cable connecting the hub to a computer USB port. Do the math, 7 Data Ports and no external power, only equals limited functionality of the device. Making matters worse, there is a mini-port where a power source can plug into, but there is absolutely no information on what Amps, Volts, or Watts are needed to power the thing. Attaching this to the wrong transformer could cause serious problems. I had the device attached to a transformer from an old Belkin 6 port hub, and the 7 port hub worked OK, even with a powered external hard drive attached. But without knowing if the Amps, Volts, or Watts generated by the Belkin transformer are a match for the needs of the 7 port hub, this device might cause issues down the road. I am not crazy about losing information, internal computer damage, or in the extreme, an electrical fire. In addition, I am wary as to why power information was not made available, especially as it is usually found on most electrical devices. The logical thing to do was return this device for one with power and from another vendor, - I did just that.