The MacBook 12" is the only Mac that can charge via the USB port. For any other Mac, you'd need a MagSafe cable in addition to the display cable.
I am aware of this, however I've seen some videos/pictures where they use a magsafe cable and a thunderbolt (or HDMI) which will fuze into one cable going into a thunderbolt display. Meaning due to the power level of the thunderbolt display, the macbook is able to charge.
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I only had it hooked up to the monitor and running on battery. I would have to connect a power cable to that hub if I wanted to charge it as well.
Macbook 12" users would be able to do that with just one cable using the Caldigit dock (if it ever releases).
Ah, I see... Well thanks anyway, I guess I don't need a cable but glasses then. Haha.