With StarTech Usb C to VGA Cable Converter with Power Delivery you can extend the USB port of your laptop or MacBook with a VGA port and a usb a 3.0 port. This way you connect a VGA screen and peripherals. In addition, the cable converter has a usb c port with which you charge peripherals, so you do not hand in the port of your laptop. Connections: Usb C 3.0 (1x), VGA (1x), Usb A 3.0 (1x), Usb C 3.0 (1x). Note: your computer must support DP Alt Mode to work with this adapter.