Lapbook plus micro! hdmi slot

Hi…can you please tell me what is this slot for…what is the use of it…what can i connect…on the left side of laptop next to usb slot…

An image says more than a thousand words

I post this not because I don’t recognize a slot…i post it just because the use of this port is …almost useless…they could do more than a micro …hdmi

So although it says that it is a Micro HDMI…It seems that it has a Mini HDMI port…lapbook plus…