Let the hive mind of Engadget get that for you.
"I finally got a new laptop with a lone USB 3.0 port. I'm now looking at getting a USB 3.0 hub with a power adapter so I can use both of my USB 3.0 hard drives at faster speeds. I've read lots of horror stories where some hubs either don't come with power adapters -- and as a consequence the portable drives don't work with them properly -- or they are designed poorly which results in USB 2.0 speeds. Or, the hard drives keep getting disconnected. Do your readers have any suggestions or experience using USB 3.0 hubs? Thanks!"
The Tribot looks great in the box, but if you have any problems with it, GOOD LUCK.
Tech support from Wow Wee consists of nothing more than a staff member telling you to "replace the batteries" or sandpaper the battery contacts.
I will NOT buy another product from these folks.