USB-C Triple-Monitor Multiport Adapter with 100W PD
A driverless USB-C travel dock with flexible HDMI and DisplayPort output for up to three external displays, a three-port 10 Gbps USB-A hub, Gigabit Ethernet and 100W PD pass-through.

Key features
Flexible triple-display output
Choose from two HDMI 2.0b and two DisplayPort 1.4 outputs to connect up to three external displays.
Up to dual 4K 60Hz plus 4K 30Hz
Supports two 4K 60Hz displays and one 4K 30Hz display when the host meets the stated DP 1.4, DSC, MST and GPU requirements.
10 Gbps USB and Gigabit Ethernet
Adds three USB-A 10 Gbps ports and Gigabit Ethernet with PXE Boot and Wake-on-LAN support.
100W PD pass-through
Accepts 100W USB-C Power Delivery input, reserves 15W for the adapter and provides up to 85W for host charging.
What to know
One cable for desk and travel setups
The integrated 60 cm USB-C host cable connects video, USB peripherals, wired networking and optional pass-through power through one compatible host port.
Driverless MST display operation
Uses DisplayPort Alt Mode and MST from the host computer. Maximum performance requires a Windows or ChromeOS host with DP 1.4 Alt Mode, DSC, MST and suitable GPU support.
Product videos
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Australian version with official StarTech.com warranty
3-Year manufacturer warranty
This is the Australian version supplied by DeviceDeal and is covered by a three-year official StarTech.com manufacturer warranty in Australia. Keep your DeviceDeal invoice as proof of purchase. Warranty coverage and claims are subject to StarTech.com warranty terms and product assessment.
StarTech 117B-USBC-MULTIPORT FAQ
How many monitors can the 117B-USBC-MULTIPORT support?
It supports up to three external HDMI and/or DisplayPort monitors, using a compatible combination of its two HDMI and two DisplayPort outputs.
What is the maximum triple-monitor resolution?
The official specification lists up to two displays at 3840 x 2160 60Hz plus one at 3840 x 2160 30Hz when the host meets the required DP 1.4, DSC, MST and GPU capabilities.
What ports does the adapter add?
It adds two HDMI ports, two DisplayPort ports, three USB-A 10 Gbps ports, Gigabit Ethernet and one USB-C 100W Power Delivery input.
How much charging power reaches the laptop?
The adapter accepts 100W Power Delivery input, reserves 15W for itself and provides up to 85W for charging the host laptop.
Is a USB-C power adapter included?
No. A compatible USB-C power adapter is optional and is not included.
Does it require display drivers?
No. Display operation is driverless, but the host USB-C port and GPU must support the required DisplayPort Alt Mode and MST capabilities.
Which operating systems are supported?
The official specifications list Windows 10, 11, 11 ARM and 8.1, plus ChromeOS 78.x.
What warranty covers the 117B-USBC-MULTIPORT?
This Australian-version product is covered by a three-year official StarTech.com manufacturer warranty in Australia. Keep the DeviceDeal invoice as proof of purchase; warranty claims remain subject to StarTech.com terms and assessment.




