StarTech.com

4K HDMI 2-Port Video Splitter – 1x2 HDMI Splitter – Powered by USB or Power Adapter – 4K 30Hz

Split an HDMI audio/video source to two separate HDMI Displays, with support for HDMI 4K, and Power through a nearby USB port.

Product ID: ST122HD4KU

  • Supports Ultra HD video resolutions up to 4K @ 30Hz
  • USB-powered, includes optional power adapter
  • Built-in HDMI source cable
View More
  • Supports 3D video
  • Support for 7.1 surround sound audio
  • 2x HDMI outputs
  • Small footprint
$109.99 NZD exc GST
$126.49 NZD inc GST
Not Available
May be in stock with partners
Where To Buy

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Overview

The ST122HD4KU 2-port video splitter supports Ultra HD (4K) ensuring astonishing picture quality, four times the resolution of high-definition 1080p, while sharing a 4K HDMI video source between two HDMI displays. 

The 4K splitter is backward compatible with previous HDMI revisions, supporting 1080p / 720p HDMI video resolution devices such as computers, Blu-ray players and cable TV set-top boxes. Even if you don't require 4K video today, the video splitter ensures you'll be ready to take advantage of tomorrow's display technology while still working with the devices you already have. Plus, this splitter supports 3D, enabling you to use the splitter with your stereoscopic 3D video source on active or passive 3D displays.

For a hassle-free setup you can power the HDMI splitter with the included USB cable, or power adapter depending on which is most convenient for you. Plus, the splitter features a built-in HDMI source cable, which lets you connect it directly to your HDMI source without the expense of additional cabling.

The ST122HD4KU is backed by a StarTech.com 2-year warranty, and free lifetime technical support.

The StarTech.com Advantage

  • Hassle-free setup with your choice of USB or power adapter, and built-in HDMI source cable
  • Take advantage of the newest video technology, harnessing the quality of 4K video devices

Applications

Display a 4K HDMI signal on two different HDMI displays

Use to showcase 4K displays, by outputing the same video source on multiple displays

Display corporate information or advertising on multiple displays at a shopping center

Use to display a stock ticker or promotional information at financial institutions

Present the same information on multiple displays in waiting rooms in healthcare facilities

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Audio Yes
Industry Standards HDMI 1.4
Output Signal HDMI
Ports 2
Performance
Audio Specifications 7.1 Surround sound
Maximum Digital Resolutions 4K @ 30 Hz
Supported Resolutions 3840x2160 (4K)
2560x1600
1920x1200
1920x1080 (1080p)
1280x720 (720p)
Wide Screen Supported Yes
Connector(s)
Connector A 1 - HDMI (19 pin) Male
Connector B 2 - HDMI (19 pin) Female
Power
Input Current 0.5 A
Input Voltage 100 ~ 240 AC
Output Current 2 A
Output Voltage 5 DC
Power Consumption (In Watts) 10
Power Source AC Adapter Included
Physical Characteristics
Color Black
Product Height 0.7 in [18 mm]
Product Length 24.2 in [615 mm]
Product Weight 8.3 oz [235 g]
Product Width 2.1 in [53 mm]
Packaging Information
Shipping (Package) Weight 0.8 lb [0.3 kg]
What's in the Box
Included in Package 1 - HDMI splitter
1 - universal power adapter (NA/EU/UK/AU)
1 - USB power cable
1 - instruction manual

Certifications

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Accessories

Product Support

Frequently Asked Questions

Before You Buy

This device outputs HDMI video signals. If you have a display or video destination that uses another type of video connection, there are ways that you can convert the video signal or connection. These options are outlined below and organized by the target connection.

HDCP

When you consider whether to convert an HDMI video signal to another connection type, it is important to know if the media that is being converted from the HDMI video connection is protected by High-bandwidth Digital Content Protection (HDCP). If the media is protected by HDCP, you cannot convert to analog video connections because they do not support HDCP. You may experience this issue when you use devices like Blu-ray players, DVD players, and certain gaming consoles.

Target connection Conversion
VGA HDMI to VGA: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=HDMI&filter_AVOUTPUT=VGA.
DVI

HDMI to DVI: https://www.startech.com/Cables/Audio-Video/HDMI/HDMI-to-DVI/.

DisplayPort HDMI to DisplayPort: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=HDMI&filter_AVOUTPUT=DisplayPort.

 

This device has an HDMI input port.  If you have a video source that uses another video connection, there are options available to convert the video signal or connection. These options will be outlined below for each video source connection.

Source Connection

Conversion

VGA

VGA to HDMI: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=VGA&filter_AVOUTPUT=HDMI.

DVI

DVI to HDMI video converters: https://www.startech.com/Cables/Audio-Video/Video-Adapter/HDMI-Cable-Adapters/.

DVI to HDMI video cables: https://www.startech.com/Cables/Audio-Video/HDMI/HDMI-to-DVI/.

DisplayPort

DisplayPort to HDMI passive converters: https://www.startech.com/AV/Displayport-Converters/DP-HDMI/?filter_CONVERTTYPE=Passive.

DisplayPort to HDMI active converters: https://www.startech.com/AV/Displayport-Converters/DP-HDMI/?filter_CONVERTTYPE=Active.

DisplayPort Passive and Active Conversions

The converter that you require depends on the type of DisplayPort video source that you are using. For more information about converting DisplayPort video signals, refer to the following FAQ: https://www.startech.com/faq/DisplayPort_Converter_DP_Multi_Mode.

Troubleshooting

When you troubleshoot issues with a video splitter, 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 splitter

  • Video source (such as a DVD player or computer)

  • Video destination (such as a monitor or projector)

Note: When you are testing setup components, you should avoid using video adapters. For example, if you are converting a VGA source to HDMI for use with an HDMI splitter, you should use an HDMI source when you test the components.

To test your setup components, try the following:

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

  • Use a different cable, video splitter, video source, and video destination 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.

When you test the video source and video destination, it is recommended that you do the following:

  • Remove the video splitter from your setup and test to make sure that the video source and video destination work together without the video splitter.

  • Test to make sure that the video source and video destination work together at the resolution that you want to use.

Note: In order for your setup to work properly, the video source, splitter, and destination all need to support the resolution that you are using.

Video splitters take the output for monitor port 1 and mirror it to the remaining outputs. By default, the first output port is the master port that is mirrored to each additional monitor. Make sure that you use the first output port when you use the video splitter. The master port is labeled on the splitter boxes from StarTech.com. On the splitter cables from StarTech.com, the master port is the top port.

If you are having issues with a splitter interpreting the incorrect port as the master port, try the following:

  1. Unplug all of the video connections.

  2. If the splitter is powered, power cycle the splitter.

  3. Plug in all of the video connections again.

  4. Make sure that the first video connection plugged in is the one that you want to be the master port.

You might encounter resolution issues when you use a video splitter. This can occur because the information and resolution on one display are being copied and sent to each of the additional displays. You should make sure that all of the displays that you are using can support the output resolution. For more information, refer to the following FAQ: https://www.startech.com/faq/video_splitters_correct_port_usage