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Instruction Manual
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
I T: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
Manual Revision: 10/16/2014
For the most up-to-date information, please visit: www.startech.com
Packaging Contents
• 1x HDMI Audio/Video Splitter (ST122HD4KU)
• 1x Power Adapter (NA/EU/UK/AUS)
• 1x USB power Cable
• 1x Instruction Manual
System Requirements
• 1x HDMI-enabled Video Source Device (i.e. Blu-ray player,
computer, etc.)
• 2x HDMI-enabled Display Devices w/ cabling (i.e. Television,
projector, etc.)
Product Diagram
Front View
Hardware Installation
Note: Ensure your HDMI-enabled video source device, and the
HDMI-enabled Display Devices are powered o before you begin
installation.
1. Connect the HDMI Input Dongle Cable on the ST122HD4KU
from the A/V output port of your HDMI-enabled Video Source
Device.
2. Connect an HDMI cable (not included) from each of the HDMI
output ports on the ST122HD4KU to the HDMI input port on
your HDMI-enabled Display Devices.
Note: Each port is numbered, please take note of which number is
assigned to each HDMI-enabled display device.
3. Power on each HDMI-enabled Display Device, followed by your
HDMI-enabled Video Source Device.
4. Connect the included power adapter from an available power
source to the power adapter port on the ST122HD4KU.
Or
If you would prefer to use a USB power source, connect the
included USB power cable from an available USB power source,
to the power adapter port on the ST122HD4KU.
5. Your Video source device A/V output will now appear on each
attached HDMI-enabled display device.
ST122HD4KU
2-Port HDMI® Splitter with USB Power – 4K
HDMI Output Port 1
HDMI Output Port 1
Activity LED
HDMI Input Dongle
Cable
HDMI Output Port 2
Activity LED
HDMI Output Port 2
Power Adapter Port
Rear View
Activity LED
Each HDMI output port on the ST122HD4KU is equipped with an
Activity LED. This LED will light while an active HDMI display is
attached and receiving a video input signal.