This is an integrated solution combining video, data, power, Ethernet and audio especially for frequent travelers. The three different video ports (HDMI, DisplayPort, VGA) allow you to enjoy 3 different images or videos on 3 different displays simultaneously under MST mode.The USB Type A ports and USB Type C data port allow you to connect multiple USB devices to the host. The USB Type C charging port allows you to provide power for this Dock and can charge the host PC at the same time by connecting a PD power adapter, no need to carry your notebooks power supply.So in general the user is traveling lighter. The micro SD and SD/MMC ports allow you to read information in the memory card onto the host. The 3.5mm audio port allows enjoying music of the host via a headset. Besides, with the Gigabit Ethernet port, you can enjoy high speed Ethernet on the host.