Mini docking station turns the USB-C or Thunderbolt 3 port of your device into a multiport workstation The USB 3.1 to HDMI adapter extends the potential of your tablet, laptop, Chromebooks, MacBook, smartphones or the USB-C or Thunderbolt 3 port of your PC. It is ideal for transferring digital audio and 4K video to a large screen, adding a USB stick or other USB peripheral devices, power supply and charging a PD charging mobile device and simultaneously connecting to a Gigabit Ethernet network. Supports the alternative USB DisplayPort mode for transmission of HDMI audio/video signals and USB signals With a source device that also supports the USB DisplayPort-Alt mode, you can expand videos from your primary display to another display, duplicate the same video on both displays or set the second display as the primary display. Transfers crystal clear 4K HDMI video