Aten US3311 2 Port 4K DisplayPort USB-C KVM Switch User Manual

US3311
2-Port 4K DisplayPort USB-C KVM
Switch with Power Pass-Through
User Manual
US3311 User Manual
Compliance Statements
FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE
STATEMENT
This equipment has been tested and found to comply with the limits for a Class
B digital service, pursuant to Part 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. Any changes or modifications made to this equipment
may void the user’s authority to operate this equipment. This equipment
generates, uses, and can radiate radio frequency energy. 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 off 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 different from that to
which the receiver is connected.
 Consult the dealer or an experienced radio/TV technician for help.
The 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.
FCC Caution: Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate this
equipment.
KCC Statement
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US3311 User Manual
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
RoHS
This product is RoHS compliant.
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US3311 User Manual
User Information
Online Registration
Be sure to register your product at our online support center:
International
http://eservice.aten.com
Telephone Support
For telephone support, call this number:
International
886-2-8692-6959
China
86-400-810-0-810
Japan
81-3-5615-5811
Korea
82-2-467-6789
North America
1-888-999-ATEN ext 4988
1-949-428-1111
User Notice
All information, documentation, and specifications contained in this manual
are subject to change without prior notification by the manufacturer. The
manufacturer makes no representations or warranties, either expressed or
implied, with respect to the contents hereof and specifically disclaims any
warranties as to merchantability or fitness for any particular purpose. Any of
the manufacturer's software described in this manual is sold or licensed as is.
Should the programs prove defective following their purchase, the buyer (and
not the manufacturer, its distributor, or its dealer), assumes the entire cost of all
necessary servicing, repair and any incidental or consequential damages
resulting from any defect in the software.
The manufacturer of this system is not responsible for any radio and/or TV
interference caused by unauthorized modifications to this device. It is the
responsibility of the user to correct such interference.
The manufacturer is not responsible for any damage incurred in the operation
of this system if the correct operational voltage setting was not selected prior
to operation. PLEASE VERIFY THAT THE VOLTAGE SETTING IS
CORRECT BEFORE USE.
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US3311 User Manual
Product Information
For information about all ATEN products and how they can help you connect
without limits, visit ATEN on the Web or contact an ATEN Authorized
Reseller. Visit ATEN on the Web for a list of locations and telephone numbers:
International
http://www.aten.com
North America
http://www.aten-usa.com
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US3311 User Manual
Package Contents
Check to make sure that all the components are in working order. If you
encounter any problem, please contact your dealer.
1 US3311 2-Port 4K DisplayPort USB-C KVM Switch with Power
Pass-Through
1 power adapter
2 USB-C cables
1 port switch button
1 user instructions
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US3311 User Manual
Table of Contents
Compliance Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Online Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Telephone Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
User Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
1. Introduction
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Host Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Hardware Setup
Connecting the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. ATEN KVM Utility
ATEN KVM Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Supported Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ATEN KVM Utility Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Opening the ATEN KVM Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Device Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Configuring Switch Hotkey. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Resetting to Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Upgrading Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Support Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Settings Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ATEN KVM Utility for Mac Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Things to Know for Mac ATEN KVM Utility . . . . . . . . . . . . . . . . . . . . . 21
4. The Firmware Upgrade Utility
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Downloading the Firmware Upgrade Package . . . . . . . . . . . . . . . . . . 23
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Starting the Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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US3311 User Manual
Upgrade Succeeded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Upgrade Failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Appendix
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
ATEN Standard Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
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US3311 User Manual
About this Manual
This user manual is provided to help you get the most from the US3311 unit. It
covers all aspects of installation, configuration, and operation. An overview of
the information found in the manual is provided below.
Chapter 1, Introduction introduces you to the 2-Port 4K DisplayPort USBC KVM Dock Switch with Power Pass-Through. Its purpose, features,
declaration, and panel components are presented and described.
Chapter 2, Hardware Setup describes the steps that are necessary to
quickly and safely set up your installation.
Chapter 3, ATEN KVM Utility explains how to download and install the
ATEN KVM Utility and how to use the software.
Chapter 4, The Firmware Upgrade Utility explains how to download
US3311’s firmware files and upgrade the device using the utility.
Appendix provides a list of safety instructions and precautions, contact
information for ATEN technical support, product specifications, and other
technical information.
Note:
 Read this manual thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the unit or any connected
devices.
 This product may be updated with features and functions added, improved
or removed since the release of this manual. For an up-to-date user
manual, visit http://www.aten.com/global/en/
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US3311 User Manual
Conventions
This manual uses the following conventions:
Monospaced
Indicates text that you should key in.
[]
Indicates keys you should press. For example, [Enter] means to
press the Enter key. If keys need to be chorded, they appear
together in the same bracket with a plus sign between them:
[Ctrl+Alt].
1.
Numbered lists represent procedures with sequential steps.
♦
Bullet lists provide information, but do not involve sequential steps.
>
Indicates selecting the option (on a menu or dialog box, for
example), that comes next. For example, Start > Run means to
open the Start menu, and then select Run.
Indicates critical information.
x
Chapter 1
Introduction
Overview
Built to deliver easy control and seamless switching between dual USB-C
hosts, the US3311 is a 2-in-1 solution combining a KVM switch and a
multiport dock with 4 x USB Type-A ports, 1 x DisplayPort, 1 x USB-C PD
input, and 1 x DC jack input. Quick switching from one laptop to the other is
made easy through one press of the dedicated port switch button, enabling use
of the same USB peripherals and a single DisplayPort monitor for two host
devices. Work efficiency is boosted without the need to switch workstations or
unplug peripherals.
Other highlights include video resolution support for up to 8K 7680 x 4320, 4K
3840 x 2160 @ 144 / 120 / 60 Hz*, ensuring that every video detail is displayed
in crisp UHD quality. The US3311 is a 4-port USB 3.2 Gen 1 Type-A hub with
up to 5 Gbps data transfer rates while supporting high-speed downstream
devices. Furthermore, the Power Delivery 3.0 technology enables charging of
the host device with up to 100 W, allowing your laptop to obtain the maximum
power via your USB-C power adapter. The US3311 helps save valuable desk
space and expands the functionality and connectivity of your Mac laptops,
creating an ultra-powerful USB-C workstation.
Note: Please make sure your host device and its accessories meet the
Thunderbolt 4 or USB 4.0, with DP 1.4 specifications to deliver up to
4K @ 144 / 120 Hz and 8K resolutions. The USB bandwidth may be
limited to USB 2.0 when the video output resolution is over 4K @ 60
Hz.
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US3311 User Manual
Features
 2-in-1 solution for 2 USB-C host devices – combines a KVM switch and a
multiport dock with 4 x USB 3.2 Gen 1 Type-A ports, 1 x DisplayPort, 1 x
USB-C PD input, and 1 x DC jack input
 Supports DP 1.4 Alt Mode
 Superior video quality – up to 8K 7680 x 4320, 4K 3840 x 2160 @ 144 /
120 / 60 Hz*
 ATEN Video DynaSync™ Technology - always optimizes display settings
 USB 3.2 Gen 1 compliant
 Up to 5 Gbps data transfer rates
 Supports PD 3.0 up to 100 W USB PD charging - allows your laptop to
obtain the maximum power via your USB-C power adapter
 Host device can be selected with the included port switch button or the
hotkeys set via ATEN KVM Utility app
 Plug-and-Play – no drivers needed
Note: Please make sure your host device and its accessories meet the
Thunderbolt 4 or USB 4.0, with DP 1.4 specifications to deliver up to
4K @ 144 / 120 Hz and 8K resolutions. The USB bandwidth may be
limited to USB 2.0 when the video output resolution is over 4K @ 60
Hz.
2
Chapter 1. Introduction
Host Requirement
USB-C enabled computer or smartphone / tablet with one of the following
operating systems:
 Windows® 10 (32-bit / 64-bit) with 7th-Gen Intel Core Processor or above
 Windows 10 version 2004
 Windows 11 version 21H2
 MacOS X 10.12 or later
 MacBook Pro 10.15.4
 MacBook Air 11.3.1
 Mac mini OS 11.3.1
 Mac mini OS 12.3.1
 MacBook Air 13” (A1932) 2018 macOS Monterey 12.2.1
 Mac mini (A1993) 2018 macOS Monterey 12.4
 iPadOS 13.1 or later
 iPad Pro 11 (A2377) iPadOS 15.1
 Android 8.0 or later
 Huawei Mate 20.Harmony OS 2.0.0
 Samsung Galaxy S21 Android 11
 Samsung Galaxy Tab S7+ Android 12
 iOS 17.1 or later
 Apple iPhone 15 Pro series
Note: To transmit video through a USB-C port, make sure your computer
supports DP Alt Mode over the USB-C port, and that it has been
enabled.
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US3311 User Manual
Declaration
Samsung Dex is a registered application of Samsung Electronics. US3311 is
not manufactured, sponsored, licensed or distributed by Samsung Electronics.
Huawei Desktop mode is a registered application of Huawei Technologies.
US3311 is not manufactured, sponsored, licensed or distributed by Huawei
Technologies.
Below is a list of supporting mobile device:
Samsung
Huawei
HTC
LG
Samsung Galaxy S8
Huawei P20
HTC U11
LG V20
Samsung Galaxy S8+
Huawei P20 Pro
HTC U Ultra
Samsung Galaxy S9
Samsung Galaxy S9+
Samsung Galaxy S10
Samsung Galaxy S10+
Samsung Galaxy S10e
Samsung Galaxy Note 8
Samsung Galaxy Note 9
4
Chapter 1. Introduction
Hardware Overview
1
Front View
2
3
4
5
6
7
Rear View
Top View
8
9
No.
Component
Description
Front View
1
USB Type-A
ports
Connects up to 4 USB peripherals such as a USB mouse,
USB keyboard, camera, USB headset, or external hard drive.
Note: These ports are USB 3.2 Gen 1 compliant.
Rear View
2
jack for port
switch button
The port switch button plugs in here. Click the button to
switch the KVM control between the two computers.
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US3311 User Manual
No.
Component
Description
3
Display output
port
Connects to a DisplayPort-enabled monitor for video display.
4
USB-C port
(source 2)
Connects to a USB-C source device here.
Note: This USB-C port supports device charing such as an
iPad for up to 5V, 3A, 15W. Please check the power
specification of the device before charging.
5
USB-C port
(source 1)
Connects to a USB-C source device here.
6
USB-C port
(power)
Connects to a laptop power adapter for laptop PD charging
on the source device connected to the USB-C port (source
1).
Note:
7
power jack

This USB-C port (power) supports USB-C PD laptop
charging at 5V, 9V, 15V, and 20V output, and the USB-C
power adapter is not supplied in the package.

For device charging, a Limited Power Source (LPS)
certified USB-C PD Power Adapter over 65 watts is
recommended. The system power requirement for basic
USB functions and video output should be at least 5V,
3A.
Connects to the power adapter here.
Top View
6
8
port 1 status
LED
9
port 2 status
LED
The LEDs correspond to the consoles. When the console is
switched, the corresponding LED will light.
Chapter 2
Hardware Setup
1. Please review the safety information regarding the placement of
this device in Safety Instructions, page 29.
2. To prevent damage to your installation from power surges or
static electricity. It is important that all connected devices are
properly grounded.
Connecting the Unit
Follow the steps below to connect the US3311 unit.
1
External
USB Headset Keyboard / Mouse Camera
Hard Drive
or
USB 3.2 *
or
USB 3.2 *
or
USB 3.2 *
USB 3.2 *
US3311
(Front)
US3311
(Rear)
2.5 MM
DP
Port Switch
Button
Monitor
5
4
USB-C
Laptop
3
USB-C
USB-C
Power
Laptop
Laptop Power
(PD Charging) Power Adapter
2
Adapter
7
6
*The indicated ports are USB 3.2 Gen 1 compliant.
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US3311 User Manual
1. Connect up to 4 USB peripherals such as a USB mouse, USB keyboard,
printer, or external hard drive to the unit’s USB Type-A ports.
2. Connect a USB-C source device to the unit’s USB-C port (source 1).
3. Connect another USB-C source device to the unit’s USB-C port (source 2).
4. Connect a DisplayPort-enabled display to the unit’s DisplayPort output
port.
5. Connect the supplied port switch button to the indicated jack.
6. Connect the power adapter to the unit’s power jack.
7. (Optional) You can connect your source device to the USB-C port (power)
for PD laptop charging.
Note: For device charging, a Limited Power Source (LPS) certified USBC PD Power Adapter over 65 watts is recommended. The system
power requirement for basic USB functions and video output should
be at least 5V, 3A.
Operation
 Press the port switch button to switch KVM control between the two USBC source devices. The port LED for the selected port lights white.
 Press and hold the port switch button for 3 seconds if you encounter any
monitor compatibility issues.
 Please see the table below for USB standards and video resolutions
when you switch between 2 lane and 4 lane modes for US3311. The
port 1 and port 2 status LEDs light once to indicate the US3311 is
switched to 2 lane mode, and light twice to indicate the US3311 is
switched to 4 lane mode.
DP 1.2
8
DP 1.4
USB
Resolution
USB
Resolution
2 Lane
3.0
4K30 Hz
3.0
4K60 Hz
4 Lane
2.0
4K60 Hz
2.0
8K60 Hz
Chapter 3
ATEN KVM Utility
Please review the safety information regarding the placement of this
device in Safety Instructions, page 29.
ATEN KVM Utility
The ATEN KVM Utility software allows users to set port switching hotkey,
enable / disable Video DynaSync and USB silent removal, reset the device to
default, and backup or restore configuration to the US3311. Please make sure
the US3311 firmware version is v1.0.064 or later to support the ATEN KVM
Utility. For how to upgrade the firmware to the US3311, see The Firmware
Upgrade Utility, page 23.
Supported Systems
The ATEN KIVM Utility supports the following mobile operating systems:
Operating System
Supported Versions
Windows
Windows 10 or above
MacOS
version 12 or later
ATEN KVM Utility Installation
To install the ATEM KVM Utility, follow the steps below:
1. On our Website, go to Support Center - Download and choose the device
model, or from the US3311 product page, click on the Support and
Downloads tab, and go to Software & Drivers. A list of available firmware
upgrade packages and software package appears.
2. Choose the ATEN KVM Utility package and download it to your
computer.
3. Unzip the downloaded file.
4. Run the ATEN_KVM_Utility.exe file and follow the on-screen instructions
to install the software.
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US3311 User Manual
Opening the ATEN KVM Utility
Once the ATEN KVM Utility is successfully installed on both of your PCs,
please also make sure the US3311 is connected to both of your PCs for the
ATEN KVM Utility to work. To open the ATEN KVM Utility, follow the steps
below.
1. Open the utility and you should see the screen below appears.
2. Click to select the US3311 connected to your PCs.
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Chapter 3. ATEN KVM Utility
3. The tutorial page appears. You can click Skip to skip the Quick Start Guide
tutorial or click Next > to run the Quick Start Guide.
4. The utility main page appears.
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US3311 User Manual
Device Page
Function
Description
Switch Hotkey
 Indicates the port switching hotkey.
 The default port switching hotkey is [Shift] +
[Alt] + [S] for Windows ATEN KVM Utility.
 The default port switching hotkey is [Shift] +
[Option] + [S] for Mac ATEN KVM Utility
 Click Edit to configure a new combination of port
switching hotkey, see Configuring Switch Hotkey,
page 13.
Video DynaSync
Enables / disables the Video DynaSync function.
When enabled, it eliminates boot-up display problems
and optimize resolutions.
Note: If you encounter any monitor compatibility
issues when the Video DynaSync is enabled, please
disable Video DynaSync.
USB Silent Removal
Enables / disables the USB silent removal function.
When enabled, the system prompt sound is muted
when you remove or switch your USB peripherals.
Note: This function is not supported by MAC ATEN
KVM Utility.
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Chapter 3. ATEN KVM Utility
Function
Description
Reset to Default
Resets the US3311 to its default settings, see
Resetting to Default, page 15.
Configuring Switch Hotkey
To configure the port switching hotkey, follow the steps below.
1. From the device page, click Edit.
2. The configuration page appears. Click the Device Switch box to configure
a new combination of port switching hotkey.
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US3311 User Manual
3. The combination must start with the [Shift], [Ctrl], [Alt] (Windows), [Opt]
(Mac), [Win] (Windows), or [Command] (Mac) key plus any other key on
a keyboard. When the combination is set, click Save.
Note:
 For Mac users, [Caps Lock], [F1] - [F12], and [Eject] cannot be used as
a hotkey combination.
 If you are using a third-party external keyboard, the default port
switching hotkey, hotkey combinations, and configuration vary
depending on the supported operating system of the third-party
keyboard. For example: Mac laptop with Windows third-party external
keyboard, the default port switching hotkey is now [Shift] + [Alt] + [S]
instead of [Shift] + [Opt] + [S], and [Alt] can now be used as a hotkey
combination.
14
Chapter 3. ATEN KVM Utility
Resetting to Default
To reset the US3311 to its default settings, follow the steps below.
1. From the device page, click Reset.
2. A warning page appears, click Reset again.
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US3311 User Manual
Maintenance Page
Function
Description
Firmware Version
 Indicates the US3311’s firmware version.
 Click Check to check for the up-to-date firmware
available for the US3311 to upgrade.
Backup
Click Backup to backup the current configuration for
later use.
Restore
Click Restore to restore a previous configuration for
current use.
16
Chapter 3. ATEN KVM Utility
Upgrading Firmware
To do an up-to-date firmware upgrade, click Check and the below screen
appears if there is a firmware available for upgrade.
Function
Description
Skip This Version
Click to skip the firmware upgrade.
Remind Me Later
Click to continue using the current firmware without
upgrading. The system will remind you later for a
firmware upgrade.
Download
Click to download and upgrade the up-to-date
firmware available for the US3311.
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US3311 User Manual
Support Page
Function
Quick Start Guide
Description
Click
to run the QSG on your ATEN
KVM Utility.
User Manual
Click
to bring up the latest US3311 user
manual for your reference.
FAQ
Click
to browse through all the FAQs to
help you solve your problems.
eService Help
Click
to bring up ATEN’s eService
support page for assistance.
18
Chapter 3. ATEN KVM Utility
Settings Page
The Settings page allows users to set the language for the ATEM KVM Utility
and to enable / disable the Launch at Startup function. To access to the Setting
page, follow the steps below.
1. From the ATEN KVM Utility configuration page, click
2. The screen below appears and click
.
.
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US3311 User Manual
3. The Settings page appears.
Function
Description
Version
Indicates the ATEN KVM Utility’s app version.
Launch at Startup
Enables / disables the launch at startup function.
When enabled, the ATEN KVM Utility will
automatically run when your system starts up.
Language
Selection a language for the ATEN KVM Utility.
About Us
Shows where to find and follow ATEN.
20
Chapter 3. ATEN KVM Utility
ATEN KVM Utility for Mac Users
The Mac ATEN KVM Utility is similar to the Windows ATEN KVM Utility,
the major difference is that Mac ATEN KVM Utility does not support USB
Silent Removal (USB Silent Removal, page 12).
Things to Know for Mac ATEN KVM Utility
 When configuring the Switch Hotkey for Mac users, the [Caps Lock], [F1]
- [F12], and [Eject] cannot be used as a hotkey combination. See Switch
Hotkey, page 12.
 To run the ATEN KVM Utility from the start, please run the ATEN KVM
Utility from the menu bar instead of clicking the icon from the desktop.
 Once the ATEM KVM Utility is up and running, you can minimize the
ATEN KVM Utility and use the icon from the desktop to bring up the
ATEN KVM Utility.
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Chapter 4
The Firmware Upgrade Utility
Overview
As new firmware versions become available, new firmware upgrade packages
are posted on our website. Check the website regularly to find the latest
information and packages.
Downloading the Firmware Upgrade Package
To download the firmware upgrade package:
1. On our Website, go to Support Center - Download and choose the device
model, or from the US3311 product page, click on the Support and
Downloads tab, and go to Software & Drivers. A list of available firmware
upgrade packages appears.
2. Choose the firmware upgrade package that you wish to install (usually the
most recent) and download it to your computer.
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US3311 User Manual
Preparation
To prepare for the firmware upgrade, do the following:
1. Power off the US3311
2. Connect the USB-C port (source 1) to the computer (which the firmware
upgrade package was downloaded to) using the supplied USB-C cable.
3. Press and hold the port switch button and make sure the port switch button
is connected to the US3311.
4. Plug the power adapter cable into the power jack to power on the US3311.
The port 1 status and port 2 status LEDs blink together once every 0.5
seconds to indicate Firmware Upgrade Mode is in effect.
Starting the Upgrade
To upgrade the US3311, follow the steps below:
1. Run the downloaded Firmware Upgrade Package file – either by double
clicking the file icon, or by opening a command line and entering the full
path to it.
The Firmware Upgrade Utility Welcome screen appears:
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Chapter 4. The Firmware Upgrade Utility
Note: The screens shown in this section are for reference only. The
wording and layout of the actual screens put up by the Firmware
Upgrade Utility may vary slightly from these examples.
2. Read the License Agreement (enable the I Agree radio button).
3. Click Next to continue. The Firmware Upgrade Utility main screen
appears:
The Utility inspects your installation. All the devices capable of being
upgraded by the package are listed in the Device List panel.
4. Click Next to perform the upgrade.
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US3311 User Manual
If you enabled Check Firmware Version, the Utility compares the device’s
firmware level with that of the upgrade files. If it finds that the device’s
version is higher than the upgrade version, it brings up a dialog box
informing you of the situation and gives you the option to Continue or
Cancel.
If you didn’t enable Check Firmware Version, the Utility installs the
upgrade files without checking whether they are a higher level, or not.
As the Upgrade proceeds, status messages appear in the Status Messages
panel, and the progress toward completion is shown on the Progress bar.
Upgrade Succeeded
After the upgrade has completed, a screen appears to inform you that the
procedure was successful:
Click Finish to close the Firmware Upgrade Utility.
After a successful completion, the US3311 exit Firmware Upgrade Mode, and
resets itself.
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Chapter 4. The Firmware Upgrade Utility
Upgrade Failed
If the Upgrade Succeeded screen doesn’t appear, it means that the upgrade
failed to complete successfully, in which case you should do the following:
1. Power off the US3311 by removing the power jack.
2. Invoke Firmware Upgrade Mode by holding down the port switch button
(see jack for port switch button, page 5), and power on the US3311. The
front LEDs flash together.
3. Do the firmware upgrade procedure again.
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Appendix
Safety Instructions
General
 This product is for indoor use only.
 Read all of these instructions. Save them for future reference.
 Follow all warnings and instructions marked on the device.
 Do not place the device on any unstable surface (cart, stand, table, etc.). If
the device falls, serious damage will result.
 Do not use the device near water.
 Do not place the device near, or over, radiators or heat registers.
 The device cabinet is provided with slots and openings to allow for
adequate ventilation. To ensure reliable operation, and to protect against
overheating, these openings must never be blocked or covered.
 The device should never be placed on a soft surface (bed, sofa, rug, etc.) as
this will block its ventilation openings. Likewise, the device should not be
placed in a built in enclosure unless adequate ventilation has been provided.
 Never spill liquid of any kind on the device.
 Unplug the device from the wall outlet before cleaning. Do not use liquid
or aerosol cleaners. Use a damp cloth for cleaning.
 The device should be operated from the type of power source indicated on
the marking label. If you are not sure of the type of power available,
consult your dealer or local power company.
 To prevent damage to your installation it is important that all devices are
properly grounded.
 Do not allow anything to rest on the power cord or cables. Route the
power cord and cables so that they cannot be stepped on or tripped over.
 Position system cables and power cables carefully; Be sure that nothing
rests on any cables.
 Never push objects of any kind into or through cabinet slots. They may
touch dangerous voltage points or short out parts resulting in a risk of fire
or electrical shock.
 Do not attempt to service the device yourself. Refer all servicing to
qualified service personnel.
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US3311 User Manual
 If the following conditions occur, unplug the device from the wall outlet
and bring it to qualified service personnel for repair.
 The power cord or plug has become damaged or frayed.
 Liquid has been spilled into the device.
 The device has been exposed to rain or water.
 The device has been dropped, or the cabinet has been damaged.
 The device exhibits a distinct change in performance, indicating a need
for service.
 The device does not operate normally when the operating instructions
are followed.
 Only adjust those controls that are covered in the operating instructions.
Improper adjustment of other controls may result in damage that will
require extensive work by a qualified technician to repair.
 Avoid circuit overloads. Before connecting equipment to a circuit, know
the power supply’s limit and never exceed it. Always review the electrical
specifications of a circuit to ensure that you are not creating a dangerous
condition or that one doesn’t already exist. Circuit overloads can cause a
fire and destroy equipment.
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Appendix
Technical Support
International
 For online technical support – including troubleshooting, documentation,
and software updates: http://support.aten.com
 For telephone support, see Telephone Support, page iv:
North America
Email Support
Online Technical
Support
Telephone Support
[email protected]
Troubleshooting
Documentation
Software Updates
http://www.aten-usa.com/support
1-888-999-ATEN ext 4988
1-949-428-1111
When you contact us, please have the following information ready beforehand:
 Product model number, serial number, and date of purchase
 Your computer configuration, including operating system, revision level,
expansion cards, and software
 Any error messages displayed at the time the error occurred
 The sequence of operations that led up to the error
 Any other information you feel may be of help
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US3311 User Manual
Specifications
Function
US3311
Computer Connections
Connectors
Computer
2
CPU 1: 1 x USB-C Female
CPU 2: 1 x USB-C Female
Device
4 x USB 3.2 Gen 1 Type-A Female
Video Output
1 x DisplayPort Female
Power
1 x DC Jack for 12V, 3.3A
1 x USB-C Female*
Port 1: Supports USB-C PD laptop charging at
5V, 9V, 15V, and 20V output
Port 2: Supports max. 5V, 3A output
Note: Supports maximum 100W USB-C PD
power adapter input.
Port Selection
Video Resolution
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Input
Port Switch Button
3840 x 2160 @ 60 Hz
3840 x 2160 @ 120 Hz
3840 x 2160 @ 144 Hz
7680 x 4320
Note: Please make sure your host device and
its accessories meet the Thunderbolt 4 or USB
4.0, with DP 1.4 specifications to deliver up to
4K @ 144 / 120 Hz and 8K resolutions. The
USB bandwidth may be limited to USB 2.0
when the video output resolution is over 4K @
60 Hz.
Appendix
Function
US3311
System Requirements
 Windows 10 and above, USB-C enabled
computer with DP Alt Mode
Note: With Intel 7th-Generation Core
Processor (Kaby-Lake) and above. More info
about CPU generation, please find: http://
www.intel.com/content/www/us/en/
processors/processor-numbers.html
 MacOS X 10.12 and later, USB-C enabled
computer
 Android 8.0 and later, USB-C enabled
Smartphone with DP Alt mode
Note: Only Samsung and Huawei support PClike operation, others only support mirror
mode. For a list of supporting mobile device,
see Declaration, page 4.
 iPadOS 13.1 and later, iPad Pro (USB-C)
Note: iPad Pro supports video output in mirror
mode.
 iOS 17.1 and later
Note: Compatible with the Apple iPhone 15
Pro series.
Power
Maximum Input
Power Rating
Power Consumption
DC12V, 3.3A
DC12V:1.68W:117BTU
LED
Selected
2 x White
Environmental
Operating
Temp
0 – 40°C
Storage Temp
-20 – 60°C
Physical
Properties
Humidity
0 – 80% RH, Non-condensing
Housing
Aluminum
Weight
0.35 kg (0.77 lb)
Dimensions
(L x W x H)
14.30 x 11.90 x 2.38 cm
(5.63 x 4.69 x 0.94 in)
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US3311 User Manual
ATEN Standard Warranty Policy
Limited Hardware Warranty
ATEN warrants its hardware in the country of purchase against flaws in
materials and workmanship for a Warranty Period of two [2] years (warranty
period may vary in certain regions/countries) commencing on the date of
original purchase. This warranty period includes the LCD panel of ATEN LCD
KVM switches. For UPS products, the device warranty is two [2] years but
battery is one [1] year. Select products are warranted for an additional year (see
A+ Warranty for further details). Cables and accessories are not covered by the
Standard Warranty.
What is covered by the Limited Hardware Warranty
ATEN will provide a repair service, without charge, during the Warranty
Period. If a product is detective, ATEN will, at its discretion, have the option
to (1) repair said product with new or repaired components, or (2) replace the
entire product with an identical product or with a similar product which fulfills
the same function as the defective product. Replaced products assume the
warranty of the original product for the remaining period or a period of 90 days,
whichever is longer. When the products or components are replaced, the
replacing articles shall become customer property and the replaced articles
shall become the property of ATEN.
To learn more about our warranty policies, please visit our website:
http://www.aten.com/global/en/legal/policies/warranty-policy/
© Copyright 2023 ATEN® International Co., Ltd.
Released: 2023-12-01
ATEN and the ATEN logo are registered trademarks of ATEN International Co., Ltd. All rights reserved.
All other brand names and trademarks are the registered property of their respective owners.
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