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Quick start guide

FR:

 Guide de l’utilisateur - fr.startech.com

DE:

 Bedienungsanleitung - de.startech.com

ES:

 Guía del usuario - es.startech.com

NL:

 Gebruiksaanwijzing - nl.startech.com

PT:

 Guia do usuário - pt.startech.com

IT:

 Guida per l’uso - it.startech.com

Manual Revision: 12/04/2015

For the latest information, technical specifications, and support for 

this product, please visit www.startech.com/ST121HDBTU.

Packaging contents

•  1 x HDMI over CAT5 transmitter 

•  1 x HDMI over CAT5 receiver 

•  1 x IR blaster 

•  1 x IR receiver

•  1 x USB cable

•  2 x foot pad sets

•  2 x power adapters

•  2 x mounting brackets

•  1 x quick start guide

System requirements

•  HDMI enabled video source such as a computer or Blu-ray™ player

•  HDMI enabled display device such as a high-definition television 

or projector

•  HDMI cabling for your video source and display

•  AC electrical outlet for the transmitter and receiver

•  CAT5e or CAT6 cabling from the extender to the receiver

•  Up to four USB peripheral devices (optional) 

Operating system requirements are subject to change. For the latest 

requirements, please visit www.startech.com/ST121HDBTU.

ST121HDBTU

HDMI over CAT6 HDBaseT Extender with USB Hub and IR - 4K  

Product Overview

Front View

Transmitter unit

Receiver unit

1.  IR output

2.  IR input

3.  3.5mm audio input

1.  USB peripheral ports

2.  IR input

3.  IR output

4.  3.5mm audio output

1

2

3

1

2

3

4

Back View

Transmitter unit

Receiver unit

1.  Power jack

2.  Link port (RJ-45 connector) 

3.  HDMI input port

4.  USB host port

1.  Power jack

2.  Link port (RJ-45 connector) 

3.  HDMI output port

4.  USB peripheral ports

1

2

3

4

1

2

3

4

Preparing your site

Note: 

 Ensure the transmitter and receiver units are situated near AC 

electrical outlets. 

1.  Determine where the local video source. (e.g. your computer or a 

Blu-ray player) will be located and set up the transmitter unit near 

that location.

2.   Determine where the remote display will be located and place 

the receiver unit near that location. 

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