mCable is not your usual HDMI cable: it has a video enhancing processor inside, which needs power to operate. That’s the only purpose of the USB connector: providing power to the built-in Marseille video processor. If you’re familiar with Google’s Chromecast, it works the same way: you plug it into HDMI for video and USB for power.
Modified on: Fri, May 19, 2017 at 7:26 PM
Did you find it helpful?Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.