Micro USB power voltage for displays?

I purchased the exact same LCD screen(s) you linked in the readme. I also avail of a Mini DP to HDMI cable.

Which kind of power cord / voltage did you use for the Micro USB? My displays do not turn on, I only get a blue blinking light on the main panel of the displays. Is it 5V/2A or 5V/3A?

Thanks.

PS: And/or tell me which power adapter you are using.