USB-c is chargeable and HDMI, read the enclosed Specs sheet inside the carton box
Update 1
Today I have tested with UGREEN adapter cable USB-C -> combo HDMI+RJ45 both port work perfect, internet LAN port and display. For the display port, have to install driver in Windows for the protocol to negotiate, no display at the BIOS level
Update 2
For charge, some one say any 12V, 30W charger microUSB + adapter to USB-c would do the job, but it is untested because lacking a protocol requirement as seen in HDMI display
FUCK FUCKTECHTABLET