Usb-c to vga adapter allows you to mirror or extend your display to your vga-enabled tv, projector or display in up to 1920 * 1200 @ 30hz resolution. it also outputs video contents like captured videos and movies. simply connect the adapter to a usb-c port that supports display alternate mode on your macbook or other usb-c laptops and then to your tv, projector or display via a vga cable (not included). it's an ideal tool for giving presentations at classrooms and conferences.