1. This Portable Hub provides USB 3.0 port, HDMI port and TYPE-C port, enables you insert three devices simultaneously, replaces the singe port design of your Macbook or Chromebook. The compact design makes it easy to carry around in pocket. 3-in-1 design avoids the trouble of carrying too much converter devices. Don't need to install extra drivers 2. Mirror or extend your screen with the HDMI port of the USB C adapter and support up to 4K resolution. USB C to HDMI 3-in-1 Adapter provides vivid, ultra HD video and clearer images and better display without any shake 3. The USB 3.0 port provide highest peak data transfer speed up to 5 Gbps, easy to transfer a HD movies in short time.Compatible with USB flash disk, camera, removable hard drive, mouse, keyboard or other USB A 2.0/USB A 3.0 devices 4. The USB C to HDMI adapter supports both mirror mode and extend mode. Not only can you sync your compatible smartphone or laptop screen to your TV/monitor to view your favorite movies in full HD with multichannel digital audio output,but also can put your favorite movies on the big screen, and use the computer to do other things online 5. Plug & Play, no driver installation or external power supply required. Slim and portable design with aluminium body for better heat dissipation. This multi-port adapter easily expands your USB C devices and meets everyday use.