Look mama, no cables:
Yeah, except it's REALLY buggy. I have one...and I'd rather use my WFT-E2A than it if I didn't need the quick down speed (< 3 sec on 21MP RAW with wireless vs ~1 sec wired with active repeater).
Did you notice that it's discontinued? There's a reason for that...
IT Geek Guy here... I've seem a lot of buggy problems with the wireless USB stuff. Don't bother. Stick with the other wired USB suggestions, cable length limits, active extensions, CAT5 baluns, etc if you're going to use the USB method.
Keep in mind that some USB cables with the small mini connector do exist that are only meant for phone charging etc and might be missing the data connection. I doubt this is the case for long cables but in case you are ever looking around real quick for a short cable in a drawer or something, just know that ALL cables of this type are not created equal.