VisionTek VT4900 USB-C KVM Docking Station User Manual
- June 5, 2024
- VisionTek
Table of Contents
VT4900 USB-C KVM Docking Station
User Manual
ABOUT THIS MANUAL
This manual is designed for use with the VT4900 Docking Station. Information in this document has been carefully checked for accuracy; however, no guarantee is given to the correctness of the contents. The information in this document is subject to change without notice. The manufacturer does not make any representations or warranties (implied or otherwise) regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any commercial damage, including but not limited to special, incidental, consequential, or other damage.
SAFETY INSTRUCTIONS
Always read the safety instructions carefully:
- Keep this User Manual for future reference.
- Keep the Dock away from liquid and humidity.
- If any of the following situations arise, please contact support:
- The equipment has been dropped and damaged.
- The equipment has obvious signs of breakage.
- You cannot get it to work according to the User Manual.
COPYRIGHT
This document contains proprietary information protected by copyright. All
rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic or other means, in any form, without prior written
permission of VisionTek.
TRADEMARKS
Copyright© 2021 VisionTek Products, LLC. All rights reserved. VisionTek is a
trademark of VisionTek Products, LLC. Other company and product names may be
trademarks or registered trademarks of the respective owners with which they
are associated. VisionTek reserves the right to change product specifications
without notice. FCC Class B and CE certified for use in-home or office. All
Characters are property of VisionTek, Inc.
OVERVIEW
Thank you for purchasing this product. Please read these instructions
carefully before connecting or operating this product.
Please keep this manual for future reference.
The VT4900 – USB-C KVM Docking Station merges cutting-edge technology and
high-quality hardware with innovative design.
With the KVM Sharing features, the VT4900 allows a user to switch their
display (HDMI / DP / DP) monitors / USB – Peripherals by using the multi-
switch mode, with Dual Host (Desktop / Laptop / Tablet) at the same time.
With the KM Sharing feature, the VT4900 allows the user to move their
mouse/touchpad cursor between multiple systems.
REQUIREMENTS
Operating System:
- Windows® 10/8.1/8/7
- macOS 10.12/10.11/10.10
Host Computer:
- An available USB-C Port
Note: Not all USB-C Ports will support the full functionality of the USB-C standard required by this docking station. Ensure that the Host Computer’s USB-C Port supports DP Alt Mode, as well as USB Power Delivery. In order to output to 4K 60Hz over HDMI, the Host Computer must support DP 1.4.
Display:
- An HDMI® Display
- Two DisplayPort Displays
Note: A 4K-capable display is required to achieve a 4K resolution.
(Alt Mode resolutions may vary depending on the compatibilities between Host
and Monitor)
Cables:
Cable requirements are optional and will depend on the port configuration of
the connected Host Computer.
- USB Keyboard / Mouse
- USB-A Cables
- USB-C Cables
- HDMI Cable
- DisplayPort Cables
- CAT5e/CAT6 Cable
Optional Accessories:
- Laptop Lock
- Microphone
- Speakers
- Headset
Quick Installation / Setup
1.1 Key Features
- USB 3.2 Gen 2 Data Transfer up to 10 Gbps
- KVM – (Keyboard & Mouse) Sharing & Display Switch
- LED Indicator
- Power On/Off Switch
- 1 x KVM Switch // KVM **Host switch by Hot Key (111 / 211 / 222 / 122)
- 2 x DP Ports 4K @ 60Hz, 1 x HDMI – 4K/ 60Hz (When host system supports DP 1.4)
- Supports Dual Power Delivery – PD 3.0, up to 100W Per System
1.2 Box Contents
- 1 x VT4900 USB-C KVM Docking Station
- 2 x USB-C to C Full Pin Cables
- 1 x Power Adapter -230W (20V/11.5A)
- 1 x Quick Start Guide
1.3 I/O Description
Icon
| I/o|
Description
---|---|---
| LED Indicator| Shows Power On / Off
| Switch Button| To switch different Display Mode / Ethernet / Audio / Down
Stream Ports Between Host 1 and Host 2
| USB 2.0 Port| To connect with Keyboard / Mouse
| Audio In/Out| To connect with Microphone and Speaker or Headset
| USB Down Stream| USB 3.2 Gen 2 x 1 A/F& C/F Ports (Down Stream)
| USB Up Stream| USB 3.2 Gen 2 x 1 C/F (Up Stream) For (Host 1 & Host 2)
**HDMI**
| HDMI| To connect with HDMI Monitor
**DP**
| DP| To connect with DisplayPort Monitor
| RJ-45 (Giga LAN Port| Connect with Cat.5 / Cat.6 Cable (10/100/1000
Ethernet)
**DC 20V**
| DC Jack| Connect with External Power Adapter (PSU)
| Lock Slot| The Lock Slot is used in combination with a Laptop Lock to
secure the Docking Station
1.4 Hardware Installation
- Download the latest drivers for Windows, macOS, and Android OS from the following link: http://www.displaylink.com/downloads/
- Connect the Power Adapter (PSU) to the DC power jack on the VT4900 Docking Station.
- Connect the included 2 x USB-C to C cables to USB-C (Upstream) Ports (Host A / B) on the Docking Station and then to an available USB-C Port on each Host computer.
- Connect your DisplayPort / HDMI displays to the corresponding ports on the VT4900 Docking Station.
- Connect any other devices to the Docking Station, including an RJ-45 (Gigabit) for network connection, USB peripherals, speakers and microphones.
- Power On the Docking Station.
1.5 Host (Display) Switch Mode
– Switch by Button
Press once = Switch to the next display mode
– Switch by Utility
As of version 3.2.5 Select “Switch UFP” = Switch to the next display mode
– Switch by Hot Key
Press “Shift” (Default) two times = Switch to the next display mode
1.6 Specifications
| Model Number | VT4900 |
|---|---|
| Interfaces | Upstream: |
USB Type-C x 2 (3.2 Gen 2 x1)
Downstream:| USB 3.2 Gen 2 Type-A x2 / USB 2.0 Type-A x2
USB 3.2 Gen 2 Type-C x1 I Audio x2 (In and Out)
HDMI x1 / DP x2
Data Transfer Rates| USB 3.2 Gen 2 x1 10Gbps
Max. Resolutions| HDMI : 4096 x 2160 / 60Hz (when supported by host and
display)
DP: 4096 x 2160 / 60Hz
Power – ( PD 3.0)| 100W x 2
OS Support| Windows 10 and later, Mac OS X 10.10.2 and later
Environmental| Operating temperature: 0°C-60°C
Storage temperature: -20°C-60°C
Humidity: <90% RH
Weight| 676g
Dimensions (W x L x H)| 219mm x 88.2 x 32.5mm
Driver Installation
Download the latest drivers (Installation Tool) for Windows, Mac OS and Android OS from the following link: http://www.displaylink.com/downloads/
2.1 DisplayLink Driver – Windows
Download the latest official drivers from the “DisplayLink Website”
2.2 DisplayLink Driver – MAC OS
Download the latest official drivers from the “DisplayLink Website”
Follow the instruction to finish the installation process.
** (Refer to the pages 10, and 11 in this User Manual)
2.3 DisplayLink USB Graphics software
2.3.1 Introduction
Welcome to the DisplayLink USB Graphics software. This software along with the
VT4900 allows you to easily connect extra monitors to your laptop or desktop
PC USB port.
The connected monitors can be configured to either mirror your main screen, or
extend the Windows desktop allowing the visibility of more applications at the
same time. The DisplayLink USB Graphics devices can also be configured to be
the primary display.
DisplayLink’s Graphics Host Software allows full configuration of all
additional USB displays, including:
- Support for Windows 8.1– Windows 10 Update 2020
- Support for up to 6 additional USB Displays
- Resolutions up to 4K / 60Hz (Product dependent)
- Rotation
- Layout of displays
DisplayLink software also provides drivers for Audio and Ethernet built into the VT4900 USB-C KVM Docking Station.
2.3.2 PC Requirements
The DisplayLink software can be utilized with any Ultrabook, Windows Tablet,
Notebook/Laptop, or Desktop system.
The performance of the software is dependent upon the processing power
available, as well as the operating system in use. More capable systems will
provide overall better performance.
Please find detailed information about the minimum and recommended system
specifications needed to run this software in the DisplayLink Knowledge Base
http://support.displaylink.com/knowledgebase/articles/524951
2.3.3 Installation Setup – Windows 10/8.1/8/7 Setup
Step 1. Connect the Docking Station to your Laptop
Noted: Note: It is recommended to download the latest drivers from the
DisplayLink support website at:
www.displaylink.com/support
Step 2. Execute the Setup File which is downloaded from the DisplayLink
website:
Step 3. Follow the screen instructions until the installation is
complete. 
Step 4. Connect your Docking Station and peripherals to your PC (Host)
2.3.4 Installation Setup – macOS 10.12, 10.11, and 10.10
DisplayLink software can be downloaded and installed from the DisplayLink
website following the steps below. Select the ‘DisplayLink Software Installer’
to begin the installation of the DisplayLink driver on your Mac.
This will run a standard Mac installer and will require a reboot once it has
been completed. 
3 Host Bridge (Docking Center) Utility (Windows)
3.1 Setup and Installation
Please follow the steps for the installation.
a. Connect HOST 1 Upstream port (On Docking Station) to the USB-C port of Host
1, and connect the HOST 2 Upstream port (On Docking Station) to the USB-C port
of Host 2
b. Double click DockingCenterAppInstall.exe to start the installation, as
shown below.
c. If the previous version of the App is installed on your
PC, App will ask users to uninstall it. Please uninstall the previous version
and get back to this step to reinstall this version.
d. After the installation is completed, double click the
icon to start the application.
e. If “User Account Control” (UAC) is shown, please click “Yes”
f. Please run the above steps on a second PC. If the second PC is a Mac,
please refer to the Mac user guide.
g. If the hub cannot connect to two PCs or the software is not executed, this
icon indicates NOT connected.
h. If two PCs are running different versions of software, this icon indicates
NOT able to run.
i. This icon indicates the connection is completed.
j. This icon indicates KM Master mode (Host can control client’s keyboard and
mouse)
3.2 Functions
3.2.1 Mouse and Keyboard
After the connection is successfully configured, the mouse connected to the
hub can be moved between the two PCs. Your Keyboard connected to the HUB can
also be used to input the PC that the mouse focuses on.
Users could right-click this icon to set up the relative position of PCs.
3.2.2 Ctrl + Alt + Del
Ctrl + Alt + Del is Windows reserved combination keys,
and the combination keys will only work on the PC that the keyboard is
connected to.
3.2.3 Switch UFP
When the Hub connects to two PCs, devices under the hub
will be recognized and enumerated by the Master host, for example, the storage
devices will only be shown on the Master PC, while the other PC is set as the
slave PC. Switch UFP function will allow users to switch the role of Master
and Slave PCs.
3.2.4 Advanced Settings
You could set a hot-key to switch UFP, and this key will allow you to switch the roles of PCs quickly. You can switch the function of KM Master as well.
3.2.5 KM Master
KM Master is a setting where you can share the keyboard/mouse from the host
side to the client side, even if the software is not installed on the client-
side.
In this case, you can use “Left ALT” + “Left SHIFT” to return to the host
side.
3.2.6 About
Software Information 
Host Bridge (Docking Center) Utility (MAC OS)
4.1 Limitations
- Not supported by VM simulation systems.
- KM Share Hub only works on USB3.0/USB3.1 host ports.
- If one PC/MAC has an abnormal KM Share operation caused by entering sleep, suspend or restart, please unplug both upstream ports, restart the software on both PC and MAC, and re-plug both upstream ports to get back to normal operation.
4.2 Setup and Installation
Please follow the steps below for the installation.
a. Connect HOST 1 Upstream port (On Docking) to the USB-C port of Host 1, and
connect the HOST 2 Upstream port (On Docking) to the USB-C port of Host 2
b. Click DockingCenterMac.pkg to start the installation, as shown below.
c. Click “Continue”
d. Click “Continue”
e. Click “Install”
f. Input “User Name” and “Password”, and press enter or click “Install
Software”.
g. Click “Open System Preferences” 
h. Click “Lock” 
i. Input “User Name” and “Password”, and press enter or click “Unlock”
j.Click “DockingCenter” and close the window.
4.3 Ready to Use
Click “GO” “Applications”. 
Start “DockingCenter”.
4.4 Functions
When KM Share is started, there are four statuses.
Indicates NON-Connected
Indicates Connected
Indicates ERROR (it may be caused by mismatched hardware of software)
Indicates KM Master mode (Host can control client’s keyboard and mouse)
a. Mouse and Keyboard
After the connection has been successfully built up, the mouse on both
computers or on the Hub can be moved over between the two computers, and the
Keyboard can be used to input on the computer that the mouse focuses on.
b. Switch UFP
When the Hub connects to two host platforms, devices connected to the hub will
be recognized and enumerated by the master host, for example, the storage
devices will only be shown on the Master side, with the other side being set
to slave or client host. Switch the UFP function to allow you to switch the
roles of master and client host 
c. Advanced Settings
– UFP Switch Hotkey Setting
You can set a hot-key to switch UFP, and this will allow you to switch the
role of the hosts. 
KM Master
KM Master Mode can only be enabled by the master host platform. When the “KM
Master” mode is enabled, the application icon becomes yellow. At this time,
you can use the host’s keyboard and mouse to control the client’s side without
requiring the KM Share application. You can also press the hotkey (left ALT +
left SHIFT) to move the cursor back to the master host side from the client-
side.
About
Software Information
Trouble Shooting
| SYMPTOM | POSSIBLE SOLUTION |
|---|---|
| Display Mode Switch is not functioning | Unplug from the Host 1 / 2 wait 10 |
seconds, and then reconnect
“Utility” is disconnected or shows abnormal information| Close the Utility and
reactive again
There is no video on the monitor that is at- tached to the dock.| Check the
video connection cables
Unplug the power, wait 10 seconds, and then reconnect
The video on the attached monitor is distorted or corrupted.| Check video
connection cables
Check the video resolution under Control Panel \Display \Change Display
Setting
The video on the attached monitor is not displaying in extended mode.| Press
the Windows logo key and P Toggle the display mode
The audio jacks are not functioning.| Right-click the Sound icon on the System
Tray
Select Playback devices
Right-click and check both Show Disconnected Devices and Show Disabled Devices
Right-click the USB Audio device and select Set as default
USB ports are not functioning on the dock.| Turn off the dock and unplug from
the power, wait 10 seconds, turn on the power and then reconnect again
DisplayLink Driver is not able to install.| You can download the latest
DisplayLink driver from: http://www.displaylink.com/downloads/
The laptop failed to wake up from the Ethernet port| Check the settings under
BIOS Items to make sure the laptop supports the wake-up-from-Ethernet port
function
** Other issues on Display might refer to DisplayLink Troubleshooting: General: https://support.displaylink.com/knowledgebase/topics/80206 -troubleshooting-general
Regulatory Compliance
FCC Conditions
This equipment has been tested and found to comply with Part 15 of the FCC
Rules.
Operation is subject to the following two conditions:
- This device may not cause harmful interference
- This device must accept any interference received. Including interference that may cause undesired operation.
CE
This equipment is in compliance with the requirements of the following
regulations:
EN 55 022: CLASS B
WEEE Information
For EU (European Union) member users:
According to the WEEE (Waste Electrical and Electronic Equipment) Directive,
do not dispose of this product as household waste or commercial waste. Waste
electrical and electronic equipment should be appropriately collected and
recycled as required by practices established for your country. For
information on recycling this product, please contact your local authorities,
your household waste disposal service, or the vendor where purchased.
References
- What are the minimum PC requirements for Windows DisplayLink software? – DisplayLink Support
- DisplayLink Downloads Page | Synaptics
- DisplayLink Support
- Troubleshooting: General – DisplayLink Support
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