I've had two of these hubs and while they look great, work with Windows and OSX and are really handy to use, with the two top ports, they have a fundamental design flaw: overheating. Both units have burnt out on me and are now useless. Dead, as in, never coming back. The first one got hot and blew within five days, which Amazon kindly replaced. The second one worked fine for about six months and then got very hot and blew out. Both times the units were on the surface of a standard office desk not stacked or surrounded by anything else. My own opinion is that the casing is too slim and too low to the desk, not allowing enough air to get in under the unit to cool it, since it's the bottom that gets very hot (too hot to touch).
So, great idea, great layout of ports, fantastically compatible with other hardware but ruined by a design flaw. Belkin, if you're listening, please raise the height of the unit off the desk a little more. I won't be buying another one in its present configuration.