StarTech.com SV431DPUA2 User manual

Manual Revision: 02/15/2018
For the latest information, technical specications, and support for
this product, please visit www.StarTech.com/SV431DPUA2.
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
SV431DPUA2
4-Port USB KVM Switch - DisplayPort
- 4K 60Hz
*actual product may vary from photos

Instruction manual
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment o and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which
the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Changes or modications not expressly approved by StarTech.com could void the user’s
authority to operate the equipment.
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
CAN ICES-3 (B)/NMB-3(B)
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and do not
represent an endorsement of a product or service by StarTech.com, or an endorsement of the
product(s) to which this manual applies by the third-party company in question. Regardless
of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby
acknowledges that all trademarks, registered trademarks, service marks, and other protected
names and/or symbols contained in this manual and related documents are the property of
their respective holders.

Instruction manual
i
Table of Contents
Product diagram ....................................................................................1
Front view .................................................................................................................................................... 1
Rear view...................................................................................................................................................... 1
Package contents ...................................................................................2
Requirements ............................................................................................................................................. 2
About the LED indicators......................................................................3
Installation ..............................................................................................3
Set up your PC............................................................................................................................................ 3
Connect the console to the KVM switch........................................................................................... 3
Connect a computer to the KVM switch........................................................................................... 4
About drivers.............................................................................................................................................. 5
Select a computer ..................................................................................5
Start an Auto Scan .................................................................................5
Set the duration of the scan time........................................................................................................ 6
Using hotkey commands ......................................................................6
Disable hotkey commands.................................................................................................................... 6
Select a computer..................................................................................................................................... 7
Start an Auto Scan .................................................................................................................................... 7
Set the duration of the scan time........................................................................................................ 7
Scan computers manually ..................................................................................................................... 7
Disable the Audio Stick feature............................................................................................................ 8
Enable or disable the USB port rule feature .................................................................................... 8
Use an alternative hotkey command................................................................................................. 9

Instruction manual
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Troubleshooting.....................................................................................9
I can’t get my wireless mouse and keyboard to work.................................................................. 9
I can’t get my gaming or combination mouse and keyboard to work .................................. 10
My display or video destination uses a dierent type of video connector than
DisplayPort .................................................................................................................................................. 10
My keyboard keeps repeating keys when it’s plugged into the KVM switch...................... 10
My mouse doesn’t move properly between my monitors......................................................... 10
Technical support...................................................................................12
Warranty information............................................................................12

Instruction manual
1
Product diagram
Front view
Port selection buttons
Port selection/link LEDs Power LED
Rear view
Power adapter port
Console DisplayPort port
Console audio
speaker and mic ports
USB keyboard and
mouse ports
Console USB ports
PC 4 ports
PC 3 ports
PC 2 ports
PC 1 ports

Instruction manual
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Package contents
• 1 x KVM switch
• 4 x foot pads
• 1 x universal power adapter (NA/JP, EU, UK, ANZ)
• 1 x quick-start guide
Requirements
• DisplayPort™
• cables
• USB-A to USB-cable or USB-C to USB-B cable’
• 3.5 mm audio cables
• Computer system or video card enabled with DisplayPort
• Computer system enabled with USB
• Display device (for example, monitor, projector, TV, and so on) enabled with
DisplayPort
• Standard wired or wireless USB keyboard
• Standard wired or wireless USB mouse
Requirements are subject to change. For the latest requirements, please visit
www.StarTech.com/SV431DPUA2.

Instruction manual
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About the LED indicators
The KVM switch comes with a port selection/link LED for each port, as well as a power
LED. For more information about the LEDs, consult the table below.
LED Behavior Scenario
Power LED Illuminated KVM switch is receiving power
Port selection/link
LEDs
Illuminated green Connected computer is turned on
Illuminated red Connected computer is currently
selected
Blinking Auto Scan process is in progress
Installation
Set up your PC
The following setup changes are required for PC users and aren’t necessary if you’re
using a mac.
1. In Standard CMOS, set Halt on Error to All But Keyboard.
2. In PNP and PCI Setup, set PNP OS Installed to Ye s .
3. In PNP and PCI Setup, set USB IRQ to Enabled.
Connect the console to the KVM switch
1. Turn o 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 or display to the console DisplayPort port.

Instruction manual
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3. Do one of the following:
• Connect a keyboard and a mouse to the USB keyboard and mouse ports.
• If you’re using a combination wireless keyboard and mouse, connect the
wireless receiver to the keyboard port.
4. If necessary, do any of the following:
• Connect speakers to the console audio speaker port.
• Connect a microphone to the console mic port.
• Connect USB peripherals to the USB hub ports.
Connect a computer to the KVM switch
You can connect up to four computers to the KVM switch.
1. Turn o the computers that you want to connect to the KVM switch and any devices
or peripherals that are connected to the computers (for example, printers, external
hard drives, and so on).
2. Connect a DisplayPort video cable to the DisplayPort port on your computer and to
one of the PC DisplayPort ports on the KVM switch.
3. Connect a USB cable to the USB port on the computer and to the PC USB port on
the KVM switch
4. If you’re using audio, connect speakers and/or a microphone to the PC audio
speaker and mic ports on the KVM switch.
5. To connect additional computers, repeat steps 1 to 4.
6. If you want to share USB peripherals between connected computers or devices,
connect the peripherals to the USB hub ports on the KVM switch.
7. Connect the universal power adapter to a power source and to the power adapter
port on the KVM switch. The power LED should illuminate.
8. Turn on any devices or peripherals that are connected to the computer, and then
turn on the connected computer. Wait for the computer to nishing loading and
then test the functionality of the keyboard and mouse of the connected computer.
9. If additional computers are connected to the KVM switch, select a dierent port
and repeat step 8 until you have tested the functionality of all of the connected
computers.

Instruction manual
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About drivers
You don’t need to install any drivers to use this KVM switch because the keyboard and
mouse use generic USB drivers that are already installed on any operating system that
supports USB technology.
Select a computer
To select a computer, do one of the following:
• Push the port selection button for the connected computer that you want
to select. The port selection/link LED illuminates red to indicate the selected
port.
• If you’re using a computer that’s running a version of Windows® or Linux®, you
can use hotkey commands to select a computer. To use the hotkey command,
press Left Ctrl, Left Ctrl, <the number of the computer that you want to
select>. The port selection/link LED illuminates red to indicate the selected
computer. For more information about hotkey commands, see the “Using
hotkey commands”section of the manual.
Start an Auto Scan
The KVM switch includes an Auto Scan feature that you can use to scan through the
connected computers in sequence with a xed scan time. If any keyboard or mouse
activity is detected during the Auto Scan process, the scanning is paused until the
activity stops and then the scan resumes with the next computer in the sequence.
To start an Auto Scan, do one of the following:
• Press port selection buttons 3 and 4 simultaneously. The port selection/link
LEDs blink during the Auto Scan process. To exit the Auto Scan, press any of
the port selection buttons.
• If you’re using a computer that’s running a version of Windows or Linux, you
can use hotkey commands to start an Auto Scan. To use the hotkey command,
press Left Ctrl, Left Ctrl,F1. The port selection/link LEDs blink during the
Auto Scan process. To exit the Auto Scan, press Left Ctrl, Left Ctrl. For more
information about hotkey commands, see the“Using hotkey commands”
section of the manual.

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Set the duration of the scan time
You can set the duration of the scan time to 3, 8, 15, or 30 seconds.
To change the scan time, do one of the following:
• Press port selection buttons 1 and 2 simultaneously. The KVM switch beeps to
indicate the duration of the scan time. It will beep once for 3 seconds, twice
for 8 seconds, three times for 15 seconds, and four times for 30 seconds.
• If you’re using a computer that’s running a version of Windows or Linux, you
can use hotkey commands to start an Auto Scan. To use the hotkey command,
press Left Ctrl, Left Ctrl,F3. The KVM switch beeps to indicate the duration of
the scan time. It will beep once for 3 seconds, twice for 8 seconds, three times
for 15 seconds, and four times for 30 seconds. For more information about
hotkey commands, see the“Using hotkey commands” section of the manual.
Using hotkey commands
If you’re using a computer that’s running a version of Windows or Linux, you can use
hotkey commands to operate the KVM switch. All hotkey commands begin by pressing
the Left Ctrl key twice and then pressing one or two additional keys.
The KVM switch emits a high-pitched beep when you enter a correct hotkey command
sequence and low-pitched beep when you enter an incorrect command. Incorrect
hotkey commands aren’t sent to the computer.
Note: Hotkey commands aren’t supported in the macOS operating system.
Disable hotkey commands
By default, hotkey commands are enabled on the KVM switch.
• To disable hotkey commands, press and hold the Left Shift key and press Num
Lock twice. Release the Left Shift key and then press the Left Ctrl key.
To enable hotkey commands, repeat the key sequence used to disable the hotkey
commands.

Instruction manual
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Select a computer
• To select a computer, press the Left Ctrl key twice and the number of the PC port
that you want to select. For example, if you want to select computer 2, you would
press Left Ctrl, Left Ctrl, 2.
Caution! Don’t use the numeric keyboard on the right side of your keyboard when you
complete the hotkey command above.
Start an Auto Scan
• To start an Auto Scan, press Left Ctrl, Left Ctrl,F1. The port selection/link LEDs blink
during the Auto Scan process.
To exit the Auto Scan, press Left Ctrl, Left Ctrl.
Set the duration of the scan time
You can set the duration of the scan time to 3, 8, 15, or 30 seconds.
• To change the scan time, press Left Ctrl, Left Ctrl,F3.
The KVM switch beeps to indicate the duration of the scan time. It will beep once for 3
seconds, twice for 8 seconds, three times for 15 seconds, and four times for 30 seconds.
Scan computers manually
The KVM switch includes a manual scan feature that you can use to switch between
connected computers that are turned on.
1. To initiate a manual scan, press Left Ctrl, Left Ctrl, F2.
2. Do one of the following:
• To select the previous computer, press the up arrow key.
• To select the next computer, press the down arrow key.

Instruction manual
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To stop the manual scan, press any key.
Disable the Audio Stick feature
By default, the Audio Stick feature is enabled on the KVM switch, which means that the
audio selection is determined by the computer that is currently selected. For example,
if you switch to computer 2, the audio selection changes to computer 2.
You can disable the Audio Stick feature and make the audio selection independent
from the computer that is currently selected. For example, if you select computer 1
and then switch to computer 2, the audio selection remains with computer 1 until you
change it.
• To disable the Audio Stick feature, press Left Ctrl, Left Ctrl, F5.
The KVM switch beeps once to indicate that the Audio Stick feature is disabled.
To enable the Audio Stick feature, press Left Ctrl, Left Ctrl, A. The KVM switch beeps
twice to indicate that the Audio Stick feature is enabled.
Enable or disable the USB port rule feature
The KVM switch includes a USB port rule feature that impacts the USB ports on the
console side. When the USB port rule feature is turned on, the USB port selection is
determined by the computer selection. For example, if you’re using computer 1 and
you switch to computer 2, the USB port selection corresponds to computer 2. If you
disable the USB port rule feature, the USB port selection is independent of the selected
computer.
1. Do one of the following:
• To disable the USB port rule on USB 1, press Left Ctrl, Left Ctrl, F7.
• To disable the USB port rule on USB 2, press Left Ctrl, Left Ctrl, F8.
• To enable the USB port rule feature on either USB port, press Left Ctrl,Left
Ctrl, U.
Note: Make sure that the USB device is properly connected before you switch to the
next computer.

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Use an alternative hotkey command
In addition to the Left Ctrl hotkey commands, there are two alternative commands that
you can use to select a computer:
• Press Scroll Lock, Scroll Lock, <the number of the port that you want to select>.
• Press and hold the Left Shift key and press Num Lock twice. Release the Left Shift
key and then press the number of the port that you want to select.
Note: Do not use the numeric keypad on the right side of the keyboard when you
complete the hotkey commands listed above.
Troubleshooting
I can’t get my wireless mouse and keyboard to work
Some wireless mice and keyboards do work with KVM switches, but in general, most
wireless mice and keyboards don’t support KVM switches. If you’re using a wireless
mouse and keyboard in your setup and are experiencing issues with your KVM switch,
try the following:
• Remove the wireless mouse and keyboard transmitters from the console USB mouse
an keyboard ports, and move the transmitters to one of the USB hub ports on the
KVM switch.
Note: Hotkey commands won’t work if the wireless keyboard transmitter is plugged
into one of the USB hub ports.
If you’re still experiencing issues, replace the wireless mouse and keyboard with a
wired mouse and keyboard.

Instruction manual
10
I can’t get my gaming or combination
mouse and keyboard to work
Gaming mice and keyboards and combination mice and keyboards have more buttons
and functionality than 3-button mice and 104-key keyboards. Most KVM switches don’t
support the additional key functions and using them in your setup may impact the
performance of your KVM switch. As such, StarTech.com recommends that you might
use a standard 3-button wired mouse and a 104-key wired keyboard in your setup.
My display or video destination uses a dierent
type of video connector than DisplayPort
If the display or video destination in your setup uses a dierent type of video
connector than DisplayPort, you can use a converter to change the output type. For
more information, visit www.StarTech.com to see the dierent types of converters that
are available.
My keyboard keeps repeating keys when
it’s plugged into the KVM switch
To resolve this issue, try the following:
• If you’re running a version of the Windows OS, in the Control Panel, navigate to the
keyboard settings and adjust the repeat delay and repeat rate until the keys no
longer repeat.
• If your keyboard is plugged into one of the USB keyboard ports on the KVM switch,
unplug it and plug it into one of the USB hub ports.
Note: Hotkey commands aren’t available if your keyboard is plugged into a USB hub
port.
My mouse doesn’t move properly between my monitors
If you’re running a version of the Windows OS, in order for your mouse to move
properly between your monitors, you need to rearrange your monitors in Windows to
match the physical location of your monitors in your setup.

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1. In the Control Panel, navigate to the display settings.
2. To see how the operating system has ordered the monitors, click Identify.
3. Click and drag the monitor icons until the order in the operating system matches
the physical setup of the monitors.
4. Click OK to apply the changes and close the window.

Instruction manual
12
Technical support
StarTech.com’s lifetime technical support is an integral part of our commitment to
provide industry-leading solutions. If you ever need help with your product, visit
www.startech.com/support and access our comprehensive selection of online tools,
documentation, and downloads.
For the latest drivers/software, please visit www.startech.com/downloads
Warranty information
This product is backed by a three-year warranty.
StarTech.com warrants its products against defects in materials and workmanship
for the periods noted, following the initial date of purchase. During this period,
the products may be returned for repair, or replacement with equivalent
products at our discretion. The warranty covers parts and labor costs only.
StarTech.com does not warrant its products from defects or damages arising from
misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their
ocers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of prots, loss of business,
or any pecuniary loss, arising out of or related to the use of the product exceed the
actual price paid for the product. Some states do not allow the exclusion or limitation
of incidental or consequential damages. If such laws apply, the limitations or exclusions
contained in this statement may not apply to you.

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