StarTech.com

Mini DisplayPort to HDMI Multi-Monitor Splitter - 3-Port MST Hub

Use this adapter to connect three independent displays to a single mDP 1.2 port

Product ID: MSTMDP123HD

  • Maximize your productivity by connecting up to three independent displays to your computer using the MST Hub
  • Connect your Mini DisplayPort computer to HDMI televisions, monitors or projectors, avoiding the hassle of additional HDMI adapters
  • Increase external video performance with support for resolutions up to 4K
View More
  • Newly engineered chipset for increased compatibility with Microsoft Surface Pro 3
  • VESA and DisplayPort certified
  • Compatible with mDP 1.2 graphics cards such as AMD Radeon with Eyefinity Technology
  • Plug-and-play installation
166,99 € EUR exc VAT
202,06 € EUR inc VAT

Overview

This MST hub lets you connect three HDMI monitors to your Mini DisplayPort computer. MST works on any Windows® device that supports DisplayPort 1.2, such as models of the Lenovo™ Think Pad® and Microsoft® Surface™. When connected to earlier revisions of DisplayPort, such as DP 1.1 the MST hub acts as a video splitter.

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. The MST hub solves these problems by letting you connect three independent displays to a single mDP 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, which makes it easier to multitask and increase your productivity - 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.

Increase Productivity with multiple screens

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. 

Extend Your Performance

 

The MSTMDP123HD  is backed by a 2-year StarTech.com warranty and free lifetime technical support.

Applications

Add more displays to your Surface Pro 3

Use one screen for reference data such as websites, while composing in another screen

Dock your mDP 1.2 device and add three high-resolution displays to your workstation

Create a panoramic video wall for DisplayPort digital signage applications

Edit images, video or audio clips across three displays in any orientation or resolution

Perfect for spanning a spreadsheet/worksheet across all three displays, to avoid side-scrolling

Enjoy the panoramic views built into games and display helpful codes/walkthrough data on a third display, at the same time

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Active or Passive Adapter Active
Audio Yes
Chipset ID MegaChips - STDP4320
Ports 3
Performance
Maximum Digital Resolutions 3840 x 2160 @30hz
Supported Resolutions 1024x768
1280x720 (High-definition 720p)
1920x1080 (High-definition 1080p)
1920x1200
2560x1440
2560x1600
3840 x 2160 (Ultra HD 4K) @30hz
Wide Screen Supported Yes
Connector(s)
Connector A 1 - Mini-DisplayPort (20 pin) Male Output
Connector B 3 - HDMI (19 pin) Female Output
Software
OS Compatibility Windows 10 (32/64)
Windows 8/8.1 (32/64)
Windows 7(32/64)
Power
Center Tip Polarity Positive
Input Current 0.5 A
Input Voltage 110V-240V AC
Output Current 3A
Output Voltage 5 DC
Plug Type N
Power Consumption (In Watts) 15
Power Source AC Adapter Included
Environmental
Humidity 50-90%
Operating Temperature 0°C to 45°C (32°F to 113°F)
Storage Temperature -20°C to 70°C (-4°F to 158°F)
Physical Characteristics
Color Black
Enclosure Type Plastic
Product Height 14 mm [0.6 in]
Product Length 114 mm [4.5 in]
Product Weight 119 g [4.2 oz]
Product Width 66 mm [2.6 in]
Packaging Information
Shipping (Package) Weight 519 g [18.3 oz]
What's in the Box
Included in Package 1 - Mini DisplayPort to 3x HDMI MST Hub
1 - Universal power adapter (NA/EU/UK/AU)
1 - Quick install guide

Compatibility

View full OS compatibility
Windows 10 (32/64)
Windows 8/8.1 (32/64)
Windows 7(32/64)

Certifications

Related Products

DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub
MSTDP122DP
DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub

Use this adapter to connect two independent displays to a single DP 1.2 port

105,99 € exc VAT
128,25 € inc VAT
DisplayPort to DisplayPort Multi-Monitor Splitter - 3-Port MST Hub
MSTDP123DP
DisplayPort to DisplayPort Multi-Monitor Splitter - 3-Port MST Hub

Use this adapter to connect three independent displays to a single DP 1.2 port

154,99 € exc VAT
187,54 € inc VAT
DisplayPort to DisplayPort Multi-Monitor Splitter - 4-Port MST Hub
MSTDP124DP
DisplayPort to DisplayPort Multi-Monitor Splitter - 4-Port MST Hub

Use this adapter to connect four independent displays to a single DP 1.2 port

211,99 € exc VAT
256,51 € inc VAT
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub
MSTMDP122DP
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub

Use this adapter to connect two independent displays to a single mDP 1.2 port

105,99 € exc VAT
128,25 € inc VAT
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub
MSTMDP122DP
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 2-Port MST Hub

Use this adapter to connect two independent displays to a single mDP 1.2 port

105,99 € exc VAT
128,25 € inc VAT
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 3-Port MST Hub
MSTMDP123DP
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 3-Port MST Hub

Use this adapter to connect three independent displays to a single mDP 1.2 port

154,99 € exc VAT
187,54 € inc VAT
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 4-Port MST Hub
MSTMDP124DP
Mini DisplayPort to DisplayPort Multi-Monitor Splitter - 4-Port MST Hub

Use this adapter to connect four independent displays to a single mDP 1.2 port

211,99 € exc VAT
256,51 € inc VAT
DisplayPort to HDMI Multi-Monitor Splitter - 3-Port MST Hub
MSTDP123HD
DisplayPort to HDMI Multi-Monitor Splitter - 3-Port MST Hub

Use this adapter to connect three independent displays to a single DP 1.2 port

200,99 € exc VAT
243,20 € inc VAT

Accessories

Product Support

Frequently Asked Questions

Before You Buy

You may have heard of MST hubs, and have been wondering what they are, and whether or not they will work in your setup. 

So what are MST hubs?  MST hubs are devices that take one DisplayPort or Mini DisplayPort video connection, and go to many video connections, usually extra DisplayPort, Mini DisplayPort, DVI or HDMI connections.  This is accomplished through DisplayPort's MST, or Multi Stream Transport function.  MST hubs allow you to mirror / duplicate your monitors so the same window are shown on all of the monitors, or extend your desktop, so that you can have different window on each monitor.

So how can you tell if you can use a MST hub?  MST hubs require that the video card's DisplayPort or Mini DisplayPort output support DP1.2 or greater, which supports MST.  Some MST hubs also specifically require HBR2, or High Bit Rate 2 support.  HBR2 allows for higher resolutions like 4K and up.  You can check whether or not a StarTech.com MST hub requires HBR2 on the individual product pages, under the Technical Specifications tab.

There are a few other important things to note.

  • Video cards can technically support DP1.2, but not support MST or HBR2, so it is important to check with your video card manufacturer that your video card specifically supports DP1.2, MST, and HBR2 (if necessary).

Currently Mac OSX does not support MST hubs, regardless of whether or not the video card does.  This is an operating system restriction, so running Windows on an Apple computer through a program like Bootcamp will allow you to use MST hubs.

Recent versions of DisplayPort include the ability to split to multiple displays from one DisplayPort connection using Multi-Stream Transport (MST).

Although you will be able to connect the MST hub to the Mini DisplayPort (mDP) connection on your Mac, Mac OSX does not support MST for NVIDIA and Intel Graphics Processor Units (GPUs). This results in a mirrored image across the outputs of a MST hub and you will not be able to have multiple independent displays on your Mac.

The limitation of NVIDIA and Intel GPUs lies within Mac OSX. If a different operating system is used, such as Microsoft Windows via Bootcamp, you may be able to use the MST functionality of your Mac.

Note: For information about Microsoft Surface tablets and MST, refer to the following FAQ: http://www.startech.com/faq/mst-hubs-microsoft-surface-tablet-compatibility.

Recent versions of DisplayPort include the ability to split to multiple displays from one DisplayPort connection using Multi-Stream Transport (MST).

Although you can connect the MST hub to any DisplayPort (DP) or Mini DisplayPort (mDP) connection, the graphics card in the computer must support MST to use a MST hub.

MST was added for DisplayPort 1.2 and includes support for High Bit Rate 2 (HBR2), which is required to operate MST. However, some manufacturers may not have implemented full support for MST.

If you are unsure if your computer supports MST, try the following:

  • Research the technical specifications of the DisplayPort sources for MST.

  • If no information is available for your product, contact the manufacturer for assistance.

  • Use USB video adapters found on StarTech.com as an alternative method to obtain multiple displays.

On a system with MST compatibility, multiple monitors are detected when they are connected to the hub. Multiple monitors can be used in the following configurations:

  • Extended: for separate, independent desktops/displays.

  • Spanned: a large, wide resolution that spans or spreads across multiple displays.

  • Duplicated: mirrored images on each display.

When a graphics card does not support MST, the hub will duplicate (mirror) the display across all three of the connections. Only one monitor will show in the displays configuration of your system.

You cannot use an MST hub to increase the maximum number of displays that a video card supports. For example, if your video card only supports up to three displays, your display limit will still be three displays even if you use an MST hub.

If you have multiple MST hubs connected to the same computer and are experiencing display issues, you should check your video card to make sure that it can support the number of displays that you are using in your setup.

If you use an MST hub in your setup, your video card also needs to be compatible with MST technology. For more information, refer to the following FAQ: https://www.startech.com/faq/mst-hubs-gpu-compatibility.

Although most Microsoft Surface tablets include Mini DisplayPort, the capabilities vary depending on the tablet model. For more information about MST hub compatibility, refer to the following table:

Model Mini DisplayPort MST Graphics card
Surface RT No No NVIDIA Tegra 3
Surface Pro Yes (DP 1.1) No Intel HD Graphics 4000
Surface 2 No No NVIDIA Tegra 4
Surface Pro 2 Yes (DP 1.2) Yes Intel HD Graphics 4400
Surface 3 Yes (DP 1.1) No Intel HD Graphics (Cherry Trail)
Surface Pro 3 Yes (DP 1.2) Yes

Intel HD Graphics 4200
Intel HD Graphics 4400
Intel HD Graphics 5000

Surface Pro 4* Yes (DP 1.2) Yes

Intel HD Graphics 515
Intel HD Graphics 520
Intel Iris 540

Surface Book Yes (DP 1.2) Yes Intel HD Graphics 520
Surface Pro 2017 Yes (DP 1.2) Yes Intel HD Graphics 615 (m3)
Intel HD Graphics 620 (i5)
Intel Iris Plus Graphics 640 (i7)

*The Surface Pro 4 does not work with an MST hub when the Surface Pro 4 is connected to the Surface Dock. If the Surface Pro 4 is directly connected, it will work with an MST hub.

In order to access the full functionality of the hub, you need to install the latest drivers provided by Microsoft Update.

Note: You cannot use an MST hub to increase the maximum number of displays that a video card supports. For example, if your video card only supports up to three displays, (as is the case with all of the Surface models listed above), your display limit will still be three displays even if you use an MST hub.

Installation

To set up a MST hub with your MST compatible system, complete the following:

  1. Plug the MST hub into a compatible DisplayPort 1.2 output from your computer.
  2. Plug the power into the MST hub.
  3. Plug your DisplayPort monitors or DisplayPort adapters/converters into the MST hub.
  4. Turn on your computer.

You should be able to detect the monitors in the display properties of your operating system.

If you are not getting any additional displays, try the following:

  • Verify that the latest display drivers are installed.
  • Press and hold the Scan button for five seconds on the MST hub.

When the monitors are detected in the display properties of your operating system, make sure that the resolutions that you are setting do not exceed the total data throughput of the DisplayPort host connection. You can verify the total data throughput (bandwidth) under the Product Overview tab for you device.

How to

Windows 10 / 8

  1. On your keyboard, press the Windows Key + X and select Control Panel.
  2. Click Appearance and Personalization, then click Display.
  3. Click the Resolution or Adjust Resolution option from the left column.
  4. Expand the drop-down menu next to “Multiple displays” and select Duplicate these Displays.
  5. Click OK to apply the changes and close the window.

Windows 7 / Vista

  1. Click the Start button and select Control Panel.
  2. Click Appearance and Personalization, then click Display.
  3. Click the Resolution or Adjust Resolution option from the left column.
  4. Expand the drop-down menu next to “Multiple displays” and select Duplicate these Displays.
  5. Click OK to apply the changes and close the window.

Windows XP

  1. Click the Start button and select Control Panel.
  2. Double-click Display.
  3. Click the Settings tab.
  4. Un-check the box beside Extend my Windows desktop onto this monitor.
  5. Click OK to apply the changes and close the window.

Troubleshooting

When you troubleshoot issues with an MST hub, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Video cables

  • Video source

  • Video destination

  • MST Hub

To test your setup components, try the following:

  • Use the video cables, video source, video destination, and MST hub in another setup to see if the problem is with the components or the setup.

  • Use a different video cable, video source, video destination, and MST hub in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

  • Eliminate the use of adapters, extenders, or splitters where possible.

When you test the MST hub with your computer system, do the following:

  • Make sure that the computer/graphics adapter is MST compatible. For more information, refer to the following FAQ: http://www.startech.com/faq/mst-hubs-gpu-compatibility.

  • Make sure that the latest graphics drivers are installed. The latest drivers are available on the website of the manufacturer of the graphics adapter.

  • Use compatible adapters. For example, DisplayPort to HDMI and not HDMI to DisplayPort.

Note: Drivers are not required for the MST hub.

To check to see if Windows is detecting the monitor, on a computer that is running a version of Windows 8 or Windows 10, do the following:

  1. On your keyboard, press the Windows key + X and click Control Panel.
  2. Click Appearance and Personalization, then click Display.
  3. In the left column, click Resolution or Adjust Resolution. Your monitors will be displayed as numbered icons.
  4. To see which monitors are detected, click the Display menu.
  5. To display the numbers on each of the connected monitors and see how the operating system has assigned their positions, click Identify.

To check to see if Windows is detecting the monitor, on a computer that is running a version of Windows 7, do the following:

  1. Right-click on the desktop and click Screen Resolution.
  2. To see which monitors are detected, click the Display menu.
  3. In the left column, click Resolution or Adjust Resolution. Your monitors will be displayed as numbered icons.
  4. To display the numbers on each of the connected monitors and see how the operating system has assigned their positions, click Identify.

If you are experiencing flickering issues with the MST hub, your monitors may be at a 59 Hz refresh rate. If they are at 59 Hz, you need to adjust the refresh rate to 60 Hz. In order to change your monitor's refresh rate, complete the following:

  1. Right-click anywhere on your desktop.
  2. Click Screen resolution or Display settings.
  3. At the top of the screen, select the monitor that you want to change the refresh rate for.
  4. Click Advanced settings or Display adapter properties.
  5. On the Monitor tab, click the Screen refresh rate drop-down list.

Note: This step may vary depending on your operating system and graphics card.

If the displays connected to your MST hub do not wake up after your computer goes to sleep, change the input on the monitor(s) from Auto to the correct input (for example, DisplayPort or HDMI). This prompts the monitor to send its identification data to the correct port instead of scanning for ports when the signal is lost.

After you select the correct input on the monitor(s), press the Scan button to initiate the handshake (EDID) process. For more information on the Scan button, refer to the following FAQ: http://www.startech.com/faq/mst-hubs-scan-button.

If you set the monitor to the correct video port and press the Scan button and the issue is still not resolved, you need to disable sleep mode on your computer. To disable sleep on a computer running a version of Windows, complete the following:

  1. Open Control Panel.

  2. Click Power Options.

Note: Depending on how you have the View by options set in Control Panel, you might have to click Hardware and Sound to see Power Options.

  1. Click Change plan settings for the plan in use.

  2. For both entries, change Put the computer to sleep to Never.

  3. Click Save Changes.

By default, most systems will duplicate to multiple displays when a MST hub is attached. If you are getting mirrored displays and cannot detect more than one display in Screen Resolution or Display Settings, your graphics card may not be compatible with MST. For more information about how to determine if your graphics card is MST compatible, refer to the following FAQ: https://www.startech.com/faq/mst-hubs-gpu-compatibility

If you are using a version of Mac OSX, refer to the following FAQ for more information: https://www.startech.com/faq/mst-hubs-mac-osx-support.

In order for your mouse to move properly between your monitors you must rearrange your monitors in Windows to match the physical location of your monitors on your desk. To do so, complete the following based on your operating system:

Windows 10 and Windows  8

  1. On your keyboard, press the Windows key + X and select Control Panel.
  2. Click Appearance and Personalization, then click Display.
  3. Click the Resolution or Adjust Resolution option from the left column, which will display your monitors as numbered icons.
  4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
  5. Click and drag the monitor icons to best match your physical setup.
  6. Click OK to apply the changes and close the window.

Windows 7 and Windows Vista

  1. Click the Start button and select Control Panel.
  2. Click Appearance and Personalization, then click Display.
  3. Click the Resolution or Adjust Resolution option from the left column, which will display your monitors as numbered icons.
  4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
  5. Click and drag the monitor icons to best match your physical setup.
  6. Click OK to apply the changes and close the window.

Windows XP

  1. Click the Start button and select Control Panel.
  2. Double-click Display.
  3. Click the Settings tab, which will display your monitors as numbered icons.
  4. Click Identify to display the numbers on each connected monitor, showing how the operating system has assigned their positions.
  5. Click and drag the monitor icons to best match your physical setup.
  6. Click OK to apply the changes and close the window.

To mirror the image from your primary monitor instead of extending your desktop, refer to the following FAQ: http://www.startech.com/faq/Windows_Mirroring_Monitors

If a DisplayPort converter with audio is not passing sound from the source to the destination, complete the following:

  1. Make sure that the DisplayPort connection on the video card is the default audio playback device.
  2. Make sure that the video card has the DisplayPort audio codec installed. If not, visit the video card manufacturer's website to find out how to update the video card driver.