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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: 09/20/2016

For the latest information, technical specifications, and support for 

this product, please visit www.startech.com/SV431HDU3A2.

Packaging contents

•  1 x 4-port HDMI® KVM switch

•  4 x rubber feet

•  1 x universal power adapter (NA/EU/UK/AU)

•  1 x quick start guide

System requirements

•  Host computer with a USB 2.0 or USB 3.0 port

•  Computer system equipped with an HDMI port

•  Display device (for example, monitor, TV, and so on) equipped with 

an HDMI port

•  USB keyboard and mouse support

The maximum resolution for this KVM switch is 1920x1080.

Note: 

To obtain the maximum USB throughout, you must use a 

computer with a USB 3.0 port.

System requirements are subject to change. For the latest 

requirements, please visit 

www.startech.com/SV431HDU3A2

.

SV431HDU3A2

4-Port KVM Switch for HDMI Computers - USB 3.0

*actual product may vary from photos

About USB 3.0 and USB 3.1 Gen 1

USB 3.0 is also known as USB 3.1 Gen 1. This connectivity standard 

offers speeds up to 5 Gbps.

Product diagram

Front view

Port selection/link LEDs

Port selection buttons

Power LED

Console USB 

keyboard and 

mouse port

USB 3.0 ports

Rear view

Console HDMI 

connector

PC connection 

ports

PC USB ports

PC audio port 

(x4)

USB 3.0 port

Power input 

port

Console USB 

keyboard and 

mouse ports

Console audio 

port

Connect the console to the KVM switch

1.  Turn off your computer and any devices or peripherals that are 

connected to it (for example, printers, external hard drives, and so 

on).

2.  Connect a monitor to the 

Console HDMI connector

 on the KVM 

switch.

3.  Connect a USB keyboard and mouse to the 

Console USB 

keyboard and mouse ports

 on the KVM switch.

4.  If necessary, connect speakers or a headset to the 

Console audio 

port

 on the KVM switch.

Attach the rubber feet

To affix the rubber feet to the bottom of the KVM switch, peel off the 

backing on each rubber foot and stick the feet to the bottom of the 

KVM switch in the indicated areas.

Connect computers to the KVM switch

You can connect up to four computers to the KVM switch.

1.  Connect a male-to-male HDMI cable from the port on the 

computer to one of the numbered 

PC connection

 ports on the 

KVM switch.

2.  Connect a USB A to B cable from the USB port on the computer to 

the corresponding numbered 

PC USB

 port on the KVM switch.

3.  If you’re using audio, connect a set of audio cables from the 

speaker port on your computer to the corresponding 

PC audio 

port

 on the KVM switch.

4.  Repeat steps 2 and 3 for any additional computers that you want 

to connect to the KVM switch.

5.  Connect the keyboard and mouse that you want to share 

between computers to the 

Console USB keyboard and mouse

 

ports.

Note:

 If you want to use USB 3.1 Gen 1 peripherals between all of the 

connected computers, make sure that the peripherals are connected 

to the 

USB 3.0

 ports on the KVM switch.

6.  Connect the universal power adapter from a wall outlet to the 

power input port on the KVM switch.

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