Targus released the DOCK412 USB Type-C DisplayPort Alternate Mode Travel Dock with Power Delivery Pass-Through.
The DOCK412 will power over its 10-inch pigtail USB Type-C Dual-Role Power host connection or via the USB Type-C Power Delivery Pass Through port on the dock.
Utilizing a single USB Type-C Thunderbolt or DisplayPort Alternate Mode port the dock is capable of rendering a single external monitor in either mirrored or extended mode using one of three different video ports, VGA, mini-DisplayPort 1.3, or HDMI 2.0 to resolutions of 4Kp30, see https://targusblog.com/2017/09/20/displayport-alternate-mode-vs-dp-alt-mode/ .
The two USB 3.0 Type-A SuperSpeed (5Gbps) ports are capable of 5VDC @ 1.5A powering and charging i.e. for a phone or tablet. The USB 3.1 Gen 1 Type-C SuperSpeed (5Gbps) port is cable of USB Type-C Power Delivery Pass Through up to 85W or downstream power delivery of 5VDC @ 15.A.
The DOCK412 also has a lock slot is for securing the dock and a GbE port for utilizing more secure wired Ethernet connections to the LAN/WAN.
The DOCK412 It has been validated on various Windows 7 and 10, macOS-X, Ubuntu 17, ChromeOS, and Android platforms but it requires either a Thunderbolt or DisplayPort Alternate Mode connection to the host and will not work with a USB Type-C 3.1 connection.