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Multi-DockingStation for Notebooks and PCs


• Extends 1x USB 3.0 to 11 further interfaces
• Input: (to notebook / PC):
USB 3.0 Type-B or Type-C™ (via included adapter)
• Output:
2x USB 3.0 Type-A Including 1x USB 3.0 5 V charger for smartphone / tablet
1x microphone 3.5 mm jack,1x earphone 3.5 mm jack
2x High Speed HDMI® video interfaces
1x Gigabit LAN RJ45 interface,
4x USB 2.0 Type-A interfaces
• Supports mirroring and extending of the attached displays,
resolutions with up to 2x 1980x1080
• Vertical (with stand foot) and horizontal settable





Multi-DockingStation for Notebooks and PCs

USB 3.0 Type-B or Type-C™ (via included adapter) connection to PC or notebook

2x USB 3.0 Type-A and 4x USB 2.0 Type-A interfaces

2x High Speed HDMI® video interfaces for mirroring and extending

1x Gigabit LAN RJ45 interface

Including 1x USB 3.0 5 V charger for smartphone or tablet

3.5 mm microphone earphone jack

Bring diversity to the office everyday

With just one USB 3.0 host interface you receive four further USB 2.0 ports, two USB 3.0 ports, two HDMI® interfaces as well as a Gigabit Ethernet connection and audio ports.

Multitasking for all

Thanks to the HDMI® video interfaces , two additional screens can be connected, both in Full HD quality. The many available USB 2.0 and USB 3.0 ports make sure you will never have a need to compensate one device over the other.

Hands and feet

The high quality metal stand makes sure the IB-DK2251AC is always in balance. Adding all the available ports, this device will make order in every situation.


In our support area you can find our download center, where we provide you with up to date firmware updates, drivers and software for many RaidSonic products. We answer your most frequently asked questions and if the need arises, you could contact our support team directly.

up-downDownload Center

Data sheets, manuals, firmware updates, drivers and other software.



Data sheet download
User Guide


Manual download


Aktuelle Treiber für Windows, Mac OS X, Android, Ubuntu

up-downFrequently Asked Questions

Here you can find answers to the most frequently asked questions regarding our products.

This DockingStation is based on the DisplayLink technology


 What is DisplayLink?

With DisplayLink, you can quickly and easily connect several monitors to your PC via a simple USB connection. The DisplayLink driver software for DockingStation communication is installed on your computer.


What I have to know before buying?

Compatibility with host computers?

-All your USB devices from USB 3.0 are completely supported. With an adapter, the DockingStation can additionally connected to a USB 3.0 Type-C™ port. Make sure that the latest USB drivers and DisplayLink drivers are installed.


How many monitors can I connect?

-Up to 6 monitors are possible under Windows® with DisplayLink technology. Under macOS® 4 monitors are possible.


Is the DockingStation ready for gaming?

-No, first and foremost this technology is designed for productive use.


Is Windows® 10 supported?

-Yes, please install the newest Windows® DisplayLink Driver to you Windows® device.


Can I use the DockingStation with Mac?

-Yes, please install the newest macOS® DisplayLink Driver to you Apple device.

ATTENTION: Apple devices with the operating system macOS® 10.13.4 are not supported! As of macOS® 10.13.5 and higher, the operation of the DockingStation is again possible without limitations!


Is the notebook charged through the DockingStation?

-No, this is not possible with DisplayLink technology. The notebook must be powered separately.


Setting up the DockingStation

How hard is the setup?

Simply install the DisplayLink driver software and connect the DockingStation to your notebook or PC. The DisplayLink driver automatically configures the monitor for optimal display quality and saves these settings for future use.


How can I continue working with my closed notebook?

Windows® provides special settings that control how the notebook behaves when the lid closes.

• You can make these settings in the power options.

• Select Settings – System - Power & sleep.

• Select "Additional power settings".

• Go to “Choose what closing the lid does".

• Select "Do nothing”.

To keep the Mac® from shutting down when it's closed, the following actions are necessary:

• The MacBook® must be connected to the power supply.

• A mouse and keyboard must be connected.

• A monitor must be connected. In this case, the MacBook® can also be used when closed.


The included USB cable is too short, can I use a third-party cable?

-Yes, this is basically possible. But is not recommended!


Does the DockingStation prevent the use of video connections on the notebook directly?

-No, using the DockingStation does not limit the functionality of your notebook in any way.


Does the DockingStation support audio output via HDMI or DisplayPort™?

-Yes, this is supported if your monitor has built-in speakers. To do this, you will need to change the default audio output in your system accordingly.


No network connection via the DockingStation, but via the host computer. What is the problem?

-It is possible that the LAN/WLAN is only released for a known MAC address. In this case, the MAC address of the DockingStation and notebooks must be equated, or the passthrough of the MAC address of the notebook must be enabled. You can usually make this setting in the BIOS of your notebook.



After the Windows operating system is updated, the DockingStation does not work anymore.

Please follow the following steps:

• Disconnect the DockingStation from the host computer.

• Download and run DisplayLink Installation Cleaner.

• Download and install the latest DisplayLink drivers.

• Restart the notebook/PC.

• Reconnect the DockingStation.


The displayed image from the DockingStation is jittering or flickering.

• -This may occur if the framerate is set incorrectly. Check you system’s settings. For example, if 59 Hz is set, change it to 60 Hz. The same applies to 29 Hz, to be set here to 30 Hz.

• -If the problem persists, try using a high quality cable.


The monitor does not turn on again after the notebook wakes from sleep mode.

• -On your monitor, change the input signal setting from AUTO to the specific source you are using (e.g., HDMI® or DisplayPort™). If the automatic search for an active connection does not find a video signal after a long time, the monitor goes into sleep mode and may stop responding to any signal from the DockingStation.

• -Windows® may have automatically turned off the USB root hub to save power. To prevent this from happening, follow these simple steps to change the USB root hub settings in order to stay active during sleep mode.

Windows 8/8.1 and 10

• Go to the Windows® settings and select "System" - "Power & sleep". Then select "Additional power settings".

• Click the power plan settings you want to use.

• Click "Change plan settings"

• Click "Change advanced power settings".

• Click the plus symbol (+) next to "USB Settings" and " USB selective suspend setting"

• Setting" to expand the options and change the setting to "Disabled”. Click OK to accept the changes.

Hint: You may need to disconnect and reconnect your DockingStation after applying these settings to restore the connection.


The video output does not work even after installing the latest DisplayLink driver.

-Apple devices with the operating system macOS® 10.13.4 are not supported! As of macOS® 10.13.5 and higher, the operation of the DockingStation is again possible without restrictions!


Why does my wireless mouse or keyboard look sluggish or not work properly when used with the DockingStation?

-Most USB wireless mouse and keyboard receivers work in the 2.4GHz band. Connecting the receiver to any USB 3.0 port can cause interference that can affect the performance of the device. The most effective method is to add a short USB 2.0 extension cable between the DockingStation and receiver to mitigate the effect, and many wireless keyboards and mice are therefore supplied with such a cable.


How do I know the MAC address of the DockingStation?

- Connect the DockingStation to the running Windows® computer and connect the LAN cable, switch the DockingStation on if necessary.
- Right click on the Windows® icon in the lower left corner.
- Select the "Run" field.
- Enter cmd and confirm by pressing OK/ENTER.
- Write ipconfig/all and confirm by pressing the ENTER key.
- The connected network devices with MAC address are now displayed.

- Connect the DockingStation to the running MacOS® computer and connect the LAN cable, switch on the DockingStation if necessary.
- Click on System Report.
- Click on Network.
- Select the appropriate device. The MAC address is displayed below.

up-downContact the support Team

Our friendly support team is glad to help you further and support you with solutions to any issue.

RaidSonic Support and Service

When you have purchased a product from us our relationship doesn’t end, rather a new kind of relationship will start. It doesn’t matter if you have questions or you want to update an older product or you have a problem (with the product) that we shall solve, you are welcome. By the way, RMA means returnmerchandise authorization.

Support Hotline +49 (0) 4102 468 950

Support Contact

Hotline hours of our RaidSonic service and support team:
Mon, Thu 8:30 - 17:30 | Fri 8:30 - 15:30


Below you can find general information regarding the product.



Article No.:


EAN Code:








USB 3.0 Speed:

USB 3.0 up to 5 Gbit/s, USB 2.0 up to 480 Mbit/s

Charger Port:

Up to 5 V, 2.1 A

Power Supply:

Wall power supply 100-240 V AC, 5 V/4 A DC


2x HDMI up to 1920x1080@60 Hz


Operating system:

Windows®, macOS®

Box content:

1x IB-DK2251AC, 1x wall power supply, 1x USB 3.0 Type-B to Type-A/Type-C™ cable (100 cm), 1x quick installation guide

Packing unit:

10 pcs./carton

Total weight:

7.96 kg/carton

Gross weight (incl. packing):

0.750 kg

Net weight:

0.214 kg


357x215x330 mm

Dimension of packing box:

65x150x200 mm

Dimension of article:

78x182x30 mm

Country of origin: