The adapter cannot work for thunerbolt displays and thunderbolt device.
You can connect the extral miniDP to HDMI/DVI/VGA/DP cable to HDMI/DVI/VGA/DP displays.
The USB-C Digital AV Multiport Adapter lets you connect your MacBook with USB-C port to an Mini Displayport Projector display, while also connecting a standard USB device and a USB-C charging cable.
This adapter allows you to mirror your MacBook display to your miniDP-enabled TV or display in up to 1080p HD. It also outputs video content like movies and captured video.Simply connect the adapter to the USB-C port on your MacBook and then to your TV or projector via an cable (sold separately).
The adapter only can connect the mini displayport or displayport monitor,it can't convert to hdmi/dvi/vga monitor with mini dislayport adapter.

Technical Details

Product Details

Package Dimensions
Width : 5.91 inch
Height : 0.39 inch
Length : 8.27 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B071GMZYHX