Or you can add this card to any mobo with a spare pci-e 1x slot.
http://www.amazon.com/Silverstone-Ex...ata/B005FE726G
Rather than advice -- some observations. You may find a USB 3.0 "internal" port on other boards -- if it's not on your mini-ITX example, you may have to choose full-ATX to get it.
I like to explore using all essential features in my computer build, while keeping it simple and not overwhelming bandwidth limitations. So when I purchased my P8Z68-V-Pro, it was a nice "extra" to find the Asmedia USB 3.0 controller and port in the board specifications.
One member here wondered if he'd have to purchase a new computer case with "front-panel USB 3.0." Neither a reason to buy a new case, nor much of a likely choice among cases on the market. Nor do I want to beat up on my colleague about his observation.
If boards are equipped with an "internal" plug for USB 3.0, they also are likely bundled with a PCI-backplate fitted with two USB 3.0 ports and a cable with plug that runs to the internal motherboard plug. By dis-assembling the backplate from the two ports and their plastic/rubber plug, you can use the cable in your own DIY assembly that gives you "front-panel" USB 3 -- for about $25.
I just purchased a SYBA USB 3.0 3.5" internal front-panel hub for $25 (try Directron or the Egg). You'll find several complaints of users about the pervasive "kloodge" that these kits support: running a USB cable out through the back of your computer to plug into an external USB 3 port at the I/O plate, with the manufacturers ignoring support for the internal USB 3 motherboard plug.
So you'd spend the $25, use the "A"-to-"B" USB cable that comes with it -- connecting the latter to the other cable that fits the USB 3.0 motherboard plug. Works like a charm.
Whatever problems people say they'd had with SYBA, Koutech, Bittech or other brand units for this sort of product -- I haven't experienced such problems. There's the possibility you may run into a USB 3.0 motherboard implementation that does not support connection of a hub, but such is not the case with the P8Z68-V-Pro and Asmedia USB 3 controller . . . .
Of course, if you spend money on a top-end board like the P8Z68-Deluxe, you get the 3.5" front-panel port device and cable bundled with it. And we've shown that the price differential between the mid-range and top-end boards of a model line pretty much reflects these differences, meaning that it's a break-even situation if you want to buy a product like the SYBA to use with the mid-range motherboard. Even so, the latter takes one USB 3.0 cable-plug and turns it into four, while your bundled 3.5" front-panel simply passes through from the two USB-3 cable plugs to two front-panel ports.