Another new version of USB Type C or USB C usb connector . It is a contemporary of UBS 3.1 and launches in August 2014 . Its two sides are round just like the picture below. Many mobile devices use this because of its small size. And since the number of connectors inside it is more than normal USB ( 12 + 2 = 24 pin) , many things can be connected with this one port. Nowadays, it is widely used in many laptops, especially Apple 's laptops and expensive mobile phones. It uses converter , HDMI, VGA, LAN, USB3 can be used all at once.