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!"
@word
Ok - if you need market figures to justify your purchase in a product then you probably don't have a mind of your own.
Stop worrying about how many other people have bought the same phone as you. It doesn't make you phone any better or worse.
I would not tell people not you use OSX or Linux because of Marketshare.