Plugable Introduces Upgraded USB-C Triple Display Docking Station With 4K Support On All Three Outputs

Mac users please note: This docking station is only compatible with macOS High Sierra 10.13.3 and earlier versions (10.11.x – 10.13.3). The upcoming update to macOS 10.13.4 will permanently disable the dual DisplayPort outputs.

After the great response to our original award winning UD-ULTCDL Triple Display Dock in May of 2016, we listened to power-users’ feedback and feature requests and are excited to announce a second Triple Display Docking Station with 4K support on all three outputs and a new port configuration with the addition of two DisplayPort++ 1.2 ports alongside the single HDMI 1.4 port.

The new Plugable UD-ULTC4K 4K Triple Display Docking Station provides up to three additional 4K display outputs via a combination of USB-C DisplayPort Alternate Mode (“Alt Mode”) converted internally to HDMI 1.4 with support for HDMI displays up to 4K@30Hz, and the DisplayLink DL-6950 USB graphics chip powering the dual DisplayPort++ ports and supporting resolutions up to 4K@60Hz. The dock also provides compatibility systems up to 60W of power via USB-C Power Delivery (“PD”) standard to charge your laptop or tablet while adding Gigabit Ethernet, wired headphone and mic input/output, and expanded USB device connectivity with 4 USB 3.0 Type-A ports and a single USB 3.0 USB-C port. All through a single USB-C cable.

The UD-ULTC4K is the first device of its kind to combine these three powerful, unique, and complementary technologies to unleash the potential of your computer while offering three 4K capable outputs simultaneously. The Plugable USB-C 4K Triple Display Docking Station is available for purchase in the USA and shipping now.

Designed for laptops and tablets with USB-C or Thunderbolt 3 the dock utilizes cutting edge USB 3.1 technologies in conjunction with the latest features of our UD-6950 dual display 4K docking station. Because USB-C features are optional and not supported by every USB-C laptop, before buying please check our compatibility tables on the product page to make sure your Mac, PC, or Chromebook is compatible. Compatible systems include the current versions of the Dell XPS 13 & 15, HP Spectre x360 13 & 15, Lenovo Yoga 720 13″; 920, Apple MacBook 12” with USB-C, MacBook Pro 13″ and 15″ with Thunderbolt 3, and many more. Note that older systems with only familiar USB “Type A” ports will not work, even with a converter cable. You must have one of the new generation USB Type-C or Thunderbolt 3 systems to take advantage of this docks features. Please note that while the DisplayPort outputs of the dock can be converted to other connectors (HDMI, DVI, VGA), adapters are sold separately.

Also we’re excited to announce that Mac users running the latest macOS 10.13.x High Sierra can now enjoy vastly improved performance over DisplayLink USB graphics than in the past. For more information on performance on Mac systems see here.

Please see our detailed product page here for more detailed information and important compatibility information, and please let us know if you have any questions in the comments below or reach out to us directly at and we will be happy to help, thanks!

49 comments on “Plugable Introduces Upgraded USB-C Triple Display Docking Station With 4K Support On All Three Outputs”

    • Joshua Henry Reply

      Thanks for asking! Preliminary testing shows that this dock and its predecessor (the UD-ULTCDL) are both fully compatible with the new Surface Book 2.

  1. Jurgen Kevelaers Reply

    You mention HP Spectre x360 13 & 15. I have a new HP Spectre x360 15 INCH (intel i7 8th generation, thunderbolt 3, …). Is this compatible? I have read about many people having difficulties charging the 15 inch Spectre through third party docks, because of the need for more power and HP software preventing charging.

      • Michael Reply

        I have the new x360 15inch and tried using the original Plugable USB-C (not 4k) 3 screen. Worked fine with two ultrawide and the laptop, but when I added a third it dropped to 1080 on all but the 4k channel. Worked for a while, but was quirky and eventually got to where I can only run one monitor. Reinstalled all drivers, same issues. Sending this one back and thinking of giving the 4k a try. Great solution if it works…

  2. Niels Reply

    Hi, could you tell us when the upgraded docking station will be available in Europe, especially Germany? Regarding Amazon, the old one is “out of stock” right now and I urgently need one of these… Any help would be greatly appreciated!

  3. joevt Reply

    Will it work with the SUNIX UPD2018 or the Delock 89582 USB 3.1 controllers? They use ASMedia USB 3.1 controllers, but they also support DisplayPort alt mode.

  4. William Reply

    Hello, is this triple display compatible with a Lenovo Legion y720. i7, has thunderbolt 3?

    • Joshua Henry Reply

      Hello William, unfortunately we have not test this model laptop at this time. It might support our dock partially, but I do not expect the dock to be able to charge your system.

  5. Brian Kasperek Reply

    Just bought a surface book 2 and have one 4K monitor with HDMI and display port inputs and one 1920X1080 monitor with HDMI and displayport inputs. What would be the best cables to use to connect with this dock? I read that displayport is better than HDMI.

    • Joshua Henry Reply

      Hi Brian,

      Since both monitors support DisplayPort and HDMI you can have a couple different configurations. For your 4K monitor if planning to run at 4K, I would connect it to one of the DisplayPorts for 4K @ 60Hz operation. I would connect your second 1080p monitor to the HDMI port for 1080p @ 60Hz.

      You could connect both to DP, but the HDMI port will be the best performing, the only limitation is that it can’t do 4K @ 60Hz, only 4K @ 30Hz, so you probably don’t want your 4K monitor there running at half the refresh rate.

      DisplayPort and HDMI will yield roughly identical images so for most people one connector isn’t much better than another.

      Best wishes!

  6. Rick Reply

    Will there be an opportunity to pre-order the item before December 31? I’ve got money in a budget that expires at the end of the year, so if I can’t order this one I will have to settle for the prior model.

    • Joshua Henry Reply

      Thanks for asking! Unfortunately due to the high demand this holiday season we’re having trouble staying in stock. At this time we do not have an ETA, it’s unlikely we’ll be back in stock or have units inbound for pre-order before the end of this month. I’m terribly sorry!

  7. Daniel Barr Reply

    So after updating to the newest Windows 10 update (all updates have run), my 3rd monitor no longer works. Before I had my laptop + 3 screens all running perfectly, now I can only get my laptop + 2 screens. The third one isn’t getting any signal at all. Is here a known issue with the newest Win 10 update and this dock?

  8. LB Reply

    I have purchased a Dell Precision 5520 with Ubuntu 16.04 and NVIDIA Quadro M1200 GPU. I believe this will have the latest Linux drivers for the NVIDIA GPU. Do you know if my system will be compatible with this dock? Thanks.

    • Joshua Henry Reply

      Thanks for asking! At this time we do not support Linux for our DisplayLink USB graphics based docking stations or graphics adapters. The dock *should* be compatible with the 5520 based on the previous model the 5510 being compatible, however this was with Windows. For Linux we expect only the “4K” HDMI output to operate.

  9. Thunderbolt Reply
  10. Stephen Serge Reply

    I’m having issues with video playback and editing from my connected monitor. I’m running the dock through USB-C on a Dell XPS 15 9560, with a GTX 1050, 16GB RAM. I have a 27″ 4K 60hz monitor connected to the plugable via display port. It’s the only external monitor I have connected. However, whenever I try to edit video in Premier or After Effects, graphics in Illustrator, or use the Insta360 Studio for 360° video editing, it LAGS horribly on my external monitor. But the second I drag the window back to my laptop’s native screen, it works fine. Am I missing something?

  11. Brian Kasperek Reply

    The UD-ULTC4K comes with a 2ft USB-C cable. Would there be any problem with using a longer one?

  12. Logan Reply

    Pie in the sky request here… Would it be possible to add some software controls(or hardware in a future version) to turn off power delivery? My laptop is docked much of the time and I’d like to be able to continue using the plugable while also letting my battery drain down on occasion for battery health.

    • Joshua Henry Reply

      Hi Logan! Thanks for the suggestion. At this time it is not possible, but it’s something that we do occasionally get asked about. It is something to think about in the future. Depending on what model laptop you have, some laptops have an option in BIOS to tell the system it will be primarily used while docked, and it will adjust its battery charging strategy as such. However this is not available on all systems unfortunately.

      The good news is that most modern laptops have an intelligent charging controller built inside of them. The computer is not “pushed” a charge from the dock, rather the docking station provides power only as requested by the computer. The computer decides if and how quickly to charge from the power available from the dock. You should not need to worry about the battery life suffering nearly as much compared to laptops from just a few years ago. Many laptops now will let the battery drain a bit before charging it back up. In Windows this will show up as “Plugged in, not charging”.

  13. Elie Abouzeid Reply

    Hello. I have a Macbook Pro 15 inch 2017 with 16 GB RAM, i7 3.1 GHZ, Radeon Pro 560 4 GB Intel HD Graphics 630 1536 MB. I want to connect 4 24 inch monitors through one of your docking stations. I am currently able to connect all four monitors directly to my mac and it will work, although this is not optimal. Do either of your solutions work for this setup.

    • Joshua Henry Reply

      Unfortunately we do not have any four monitor solutions for you that would be an all-in-one package. You could possibly use one of our triple docking stations and connect a fourth monitor using a USB graphics adapter, however the performance from a solution like this may not be ideal depending on your use case.

      I’d suggest contacting us directly at and we can try to come up with a solution for you.

    • joevt Reply

      The MacBook Pro has two Thunderbolt 3 controllers. One on the left side and the other on the right side. A Thunderbolt controller supports two displays. Either from a single Thunderbolt 3 port, or from two ports.

      Therefore, four displays requires at least two Thunderbolt 3 ports. One on the left side of the MacBook Pro and one on the right side. You’ll need a Thunderbolt 3 device that supports two displays on each side.

      Any Thunderbolt 3 device with two Thunderbolt 3 ports and a DisplayPort or HDMI port will support two displays. The most common example is a Thunderbolt 3 dock. Another example is a Thunderbolt 3 RAID drive with a DisplayPort. You’ll need a USB-C (DisplayPort alt mode) to DisplayPort or HDMI adapter for one of the displays.

      The simplest Thunderbolt 3 device that supports two displays is a Thunderbolt 3 to Dual DisplayPort or HDMI adapter.

      I don’t think there exists yet a single Thunderbolt 3 docking station that has two Thunderbolt 3 connections to a MacBook Pro with support for 4 displays. Such a device might look like the LandingZone Docking Station which has a connection to both sides. The LandingZone is USB-C, not Thunderbolt 3, so it’s capabilities are limited, just like the Plugable UD-ULTC4K 4K Triple Display Docking Station.

      Two of the three displays of the Plugable UD-ULTC4K 4K Triple Display Docking Station uses USB graphics adapters which don’t work on macOS as well as they do on Windows and don’t perform as well as a display connected directly to your computer’s graphics chip. I suppose you could connect additional USB graphics adapters to the USB ports of the docking station but they all share a single 5 Gbps USB connection to your computer (why not 10 Gbps USB 3.1 gen 2?). The third display is limited to 4K 30 Hz (because half the bandwidth is used for USB) but at least it’s connected directly to your computer’s graphics chip. Thunderbolt 3, on the other hand, supports two 4K 60Hz displays (16 Gbps each) which are both connected directly to your computer’s graphics chip.

  14. Brian Kasperek Reply

    I asked a question on Feb 27 and there has been no reply
    The UD-ULTC4K comes with a 2ft USB-C cable. Would there be any problem with using a longer one?

    • joevt Reply

      It depends on the cable. The Plugable UD-ULTC4K uses a mix of USB 3.1 gen 1 (5 Gbps send/receive) and DisplayPort 1.2 signals (5.4 Gbps, 2 lanes). The recommended cable length for USB 3.1 gen 1 is ≤ 2m (6.5 ft). For gen 2 (10 Gbps), it’s ≤ 1m (3.2 ft).

      Look for a USB-IF certified cables

      For cables on, look at reviews.

      Plugable makes a USB-IF certified USB 3.1 Gen2 Type-C cable (3.3FT/1M)

      Plugable also makes a Thunderbolt 3 20 Gbps USB-C cable (6.6FT/2M) which should also work.
      The amazon product page says “Thunderbolt, USB & DisplayPort Alt Mode compatible” but their website’s product page doesn’t mention “DisplayPort Alt Mode” but I think it should (reviewers have tested this).
      I think this cable is certified by Intel (for Thunderbolt) but not USB-IF.

  15. J. Campbell Reply

    I would like to use this dock to drive three external monitors, plus my laptop’s built-in monitor. Any comment? Feasible? Watch outs? Advice

    • Mitchell F Reply

      Thanks for asking. You’ll want to confirm that your Windows laptop has a USB-C port that supports both power and video. Not all USB-C ports do, as some only support data transfer. If you’d like more help with gauging compatibility, please reach out to us at and we’d be glad to assist. Thanks!

    • joevt Reply

      The dock supports two displays from the DisplayPort++ ports using DisplayLink which is video through USB – not connected directly to a GPU – requires DisplayLink drivers. Read about DisplayLink elsewhere for info about performance.

      The dock supports a third display from the HDMI port if your laptop supports DisplayPort Alt Mode from the USB-C port. In this case the display is driven by your laptop’s GPU so there are no performance concerns (except you are limited to 1440p 60z or 4K 30Hz).

  16. Johnny Li Reply

    i own a Huawei Laptop, it has 2 USB C ports, Both used this device, outputted 6 monitors total…Gotta give credit for PLugable!!! Thank you

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