The DUB-V310 3-in-1 USB-C to HDMI/VGA/Display Port Adapter allows you to instantly add additional displays to your ultra-portable laptop. Just plug the DUB-V310 into an available USB Type-C or Thunderbolt 3 port and you are ready to expand your desktop workspace or display on additional/larger screens. Output to 3 displays simultaneously Multi-stream transfer allows connection to 3 external displays at the same time, enabling greater productivity. No installation required Simply connect to an available USB Type-C or Thunderbolt 3 port and enjoy HDMI, Display Port, or VGA video in seconds; no further installation necessary.