Hi. I asked this question to Gearbest, my supplier of the Cube i7 Book:
“I bought a USB-C to HDMI MHL adapter, which is not working. Is the Cube i7 book’s USB-C suitable for imaging the screen on an external monitor via HDMI through the USB-c port?”
And I got the following answer from Gearbest:
“Sorry, the Cube i7 book’s not supportĀ imaging the screen on an external monitor via HDMI”
Moreover, I cannot charge the tablet through USB-C with chargers up to 2A.
It looks to me that the USB-C port is a very weak point for this tablet.