***** **********Best Quality Guranteed. *****1. { USB 3.1 Type C Compatibility} USB-C is a new standard with much versatility, not all USB-C devices support all of the latest USB-C protocollike displayport Alternate mode video output. So, please be sure that features of the device such as Power Delivery & Alternate Mode must be supported by your host laptop system to function, otherwise the HDMI/DP/VGA interfaces will not work properly; As such, this docking station is not compatible with legacy USB 3.0 /"USB A" system. *****2. {Extend & Mirror Mode} USB C dock supports triple display if connected to a Macbook Pro (2016 or later), this triple monitor Docking station can display total four contents (includs the host laptop) simultaneously in mirror mode(a-a-a-a); The host display can be different with other external displays (a-b-b-b) if in extend mode.
If Windows laptop, supports total three different displays (a-b-c) through DP/ HDMI1 or HDMI2/VGA ports (two of three) in extend mode. *****3.