My only suggestion would be to first....
Determine if your new AiO desktop has USB 3.0 support (which it likely does) then look for a good multiport USB 3.0 externally powered hub.
I wasted some money, trying to save some by cutting corners and going the cheap route with an unpowered USB 3.0 hub, which doesn't work as well as I had hoped (fine for thumbdrives and such, but not for external spinners that require a bit more umph in the power department.
I looked at Gideon's link and that appears to be a firewire hub with a USB connection.
Something like this
http://smile.amazon.com/HDE-SuperSp...452211&sr=8-4&keywords=usb+3.0+AC+powered+hub
Might be more along the lines of what you are looking for, although you really need to do your own shopping around and pay particular attention to the reviews of any product you are considering.