StarTech USB C DisplayPort Adapter - 3 Port DisplayPort MST Hub

Model Number: MSTCDP123DP
Web Code: 12615747

StarTech USB C DisplayPort Adapter - 3 Port DisplayPort MST Hub


Maximize your productivity by connecting three independent displays to your computer using the MST hubHassle-free connection with the reversible USB-C connectorConnect to almost any television, monitor or projector, with the support of low-cost adapters (sold separately)Support for resolutions up to 4K on up to two monitors simultaneouslyThunderbolt 3 port compatible
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Maximize your productivity by connecting three independent displays to your computer using the MST hubHassle-free connection with the reversible USB-C connectorConnect to almost any television, monitor or projector, with the support of low-cost adapters (sold separately)Support for resolutions up to 4K on up to two monitors simultaneouslyThunderbolt 3 port compatible

This MST hub lets you connect three DisplayPort monitors to your USB-C™ computer. MST ensures hassle-free setup by natively working on any Windows® device that supports DP alt mode over USB Type-C™, such as models of Dell Precision™, Dell XPS™ laptops and ASUS® ROG GL752.

The MST hub also works with Thunderbolt™ 3 ports to provide Thunderbolt 3 to triple DisplayPort conversion. Plus with a lower price point than docks, MST offers a multi-monitor solution that’s more cost-effective than a traditional laptop docking station.

Increase your productivity with multiple monitors

The newest generations of laptops are more portable than ever. Unfortunately, this means you’re left with fewer video outputs and a small integrated screen. This MST hub solves these problems by letting you connect three displays to a single USB-C port on your computer, which makes multitasking much easier.

Using the MST hub, you can extend your desktop onto additional monitors and stream independent content to each display. This makes it easier to multitask and increase your productivity, which is perfect for creating an easy-to-dock hot-desk solution with a wireless keyboard and mouse peripheral set.

You can also mirror the same image onto multiple displays for remote viewing applications such as digital signage.

Astonishing picture quality that won’t drain your system resources

MST technology uses your existing video card to minimize the use of system resources while delivering Ultra HD 4K resolutions. 4K is supported by the latest A/V devices and delivers four times the resolution of 1080p.

Plus, because the MST hub can output high-definition 1080p, the MST hub is perfect for all high-resolution applications such as graphic design and medical imaging.

Works with any monitor, television or projector

With this MST hub, you can use separate DP video adapters to connect HDMI, VGA or DVI displays, for compatibility with all of your existing monitors.

The MSTCDP123DP is backed by a 2-year StarTech warranty and free lifetime technical support.


End Type #1
End Type #2
End Type #3
Not Applicable


Maximum Resolution
Standard Definition


Seller's Warranty - Parts
2 Years
Seller's Warranty - Labour
2 Years

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Rating Breakdown












  • Works perfectly with Linux.
    Reviewed by ShamballaJones - December 12, 2018

    I bought this to allow my HP ZBook G3, running Linux (Kubuntu 18.10), to drive three Samsung 1920x1200 DisplayPort monitors. The display multiplier worked perfectly out of the box. It allowed the ZBook to drive all three screens, plus the laptop's own 1920x1080 screen, making four in total, with no discernable performance impact and no glitches or problems. Linux detected the additional monitors automatically and the KDE desktop made it trivial to arrange them as desired, and to disable the laptops screen so that I could close the laptop and use only the other three. (Depending on your distro you may need to add your user to some groups in /etc/group.) All in all - an excellent product that does exactly what it claims, does it well, and does it with no fuss or problems. As with all StarTech kit the build quality looks pretty good. Well worth the money.

    Review originally posted on

  • As flexible as it is useful
    Reviewed by William Ryan - September 14, 2017

    I received this in exchange for providing an unbiased review. I'll admit I'm a big fan of StarTech products but I do my absolute best to stay totally objective. Packaging is excellent. It's not overdone, not too minimal to protect the product in shipping. It's also not so overdone that you are left with extra boxes. Not germaine to this particular product but it's part of the experience. Unboxing takes seconds, literally. It couldn't be easier to simpler. The design is so intuitive the most difficult part of the process is finding the USB C adapter on your computer or finding the right chords to hook into your monitor. I use a HDTV as my main monitor along with three other ones, but I had an older flatscreen in one of the rooms that I try to use. Running through each adapter port, the resolution was as good as any other connector or bridge. The only problem I had was with some display drivers for one of the monitors that needed to be installed before it worked. But this was b/c of the operating system, nothing related to this hub. Just figured I'd mention it. The main reason I am such a big fan of StarTech products is the design and build of the products. If you are looking to pay a little more to get a lot more quality, you'll always get the quality with them. This is no exception. It's firm, strong and can withstand wear and tear. The only even small issue design wise was that one of the Ports was a little too tight. MOst of the time the fit is perfect, snug without being too snug. In any case, this one port got better with use and it only took about 5 insertions to make everything fine. All in all, this is so easy to use, takes no time to get up and running, has a cycle time of about 1 minute to be useful and it's just built really well.

    Review originally posted on

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