i-tec USB-A/USB-C Dual 4K/60 Hz HDMI Video Adapter

Resolution

Description

Extend your desktop with two external HDMI monitors. The adapter supports 2x 4K resolution 4096×2160@60Hz including audio signal.

The adapter is suitable for designers, graphic artists and other users who work with multiple screens simultaneously. Its performance allows you to run even the most demanding applications on one or two independent displays, making it ideal for editing 4K/60Hz videos or other Ultra HD tasks

With “Expand” and “Mirror” modes, you can work with applications on two monitors (e.g. large spreadsheets), work on one monitor and search for information on the Internet on the other, compare several documents at once without having to constantly jump between open windows, view panoramic images on two monitors, view charts and current data simultaneously, view several presentations at once without having to have another computer, etc.

A short, one-time installation of the DisplayLink driver is required before using the adapter. For more information, please visit www.i-tec.pro/setup.

Manuals

• Datasheet

FAQ

Question: My video output (HDMI, DisplayPort, DVI…) doesn’t work after connecting to my MacBook or after installing DisplayLink drivers.

A: Apple has added a new security feature to macOS 10.13 and later that blocks the automatic installation of drivers that use the “kernel” extension. The DisplayLink driver uses these extensions. To work properly, you must enable the “DisplayLink Corp” exception in your MacBook’s Security Settings. Detailed instructions can be found here:

https://i-tec.cz/en/setup/

Question: I have 2 external monitors with built-in speakers. And when they are connected to the dock, the same sound plays from both of them. Is it possible to set the monitor that will play the sound?

Answer. At the moment, the only option is to turn it off directly in the monitor settings.

Question: After updating the Windows Operating System, the dock is not working.

Answer:

1. Download and run DisplayLink Installation Cleaner – available for download in the “Manuals, Drivers” section.

2. Restart your device (computer, laptop, etc.)

3. Connect the docking station/graphics adapter

4. Download and install the latest DisplayLink drivers – download in the “Manuals, Drivers” section or here: Driver

Question: When I close the lid of my laptop, the laptop shuts down. Can I prevent this from happening?

Answer:

– Windows has a special setting that controls what happens to the laptop when the lid is closed. And this setting needs to be changed. Right-click on the Start button and select Power Options. From the options on the right side, select More Power Settings. A new window will open and from the menu on the left side, select Lid Close Settings and select Do no action.

– For macOS , there are 4 conditions that must be met to prevent the MacBook from shutting down. The MacBook needs to be connected to power, the external keyboard, mouse and monitor need to be connected. And then the MacBook lid can be closed and only the external monitor can be used.

Question: I can’t set the monitor to 4K 60Hz resolution.

A: Please first make sure that both the dock/graphics adapter and the monitor can handle this resolution. Please also make sure that:

– If connected via HDMI , your HDMI cable supports 4K 60Hz. Only HDMI cables version 2.0 and later support this. Also, some monitors/TVs may have an item in the settings that needs to be enabled.

– If connected via DisplayPort , your cable supports 4K60Hz. Only DP cables version 1.2 and later support this. Also make sure that you have DP 1.2 or later selected in your monitor settings. Check the manual for your monitor in case you don’t know where to look for this setting.

Question: Can a monitor connected via a docking station use nVidia/AMD/Intel graphics technologies? For example, G-sync or FreeSync.

A: The docking station cannot use nVidia/AMD/Intel graphics technologies.

Question: With the dock/graphics adapter, is it possible to set the frame rate to 120 Hz (144 Hz, etc.)?

A: This is not possible. DisplayLink based docking stations/graphics adapters can handle a maximum of 60Hz.

Question: Is it possible to connect a touchscreen monitor?

A: This is possible, but i-tec Technologies cannot provide technical support in this case as this is a monitor manufacturers technology.

Question: The image on the connected monitor is flickering.

A: Please try a different higher quality HDMI/DisplayPort cable, this can often solve your problem. Please also reboot your laptop/computer and also the docking station.

Question: Can I use an adapter to convert the signal from DVI/HDMI to DisplayPort?

A: You can convert the signal from HDMI to DisplayPort, but only if you use an active (powered) adapter.

Therefore, you cannot use a passive (non-powered) cable/adapter under any circumstances. Passive cables/adapters can only convert DisplayPort signals to HDMI.

Question: The USB/Thunderbolt cable is too short for my needs. Can I use a longer cable from another manufacturer?

A: Yes, you can use other longer cables. However, we are not responsible for any problems caused by using third party cables.

Question: What is the function of the power button if I cannot turn the laptop on/off with it?

A: The power button is used to turn the docking station on/off.

Question: I have speakers/headphones connected in the audio jack of the dock, but they do not play any sound.

A: Right-click the Start button and select Settings. From here, select System and from the menu on the left side, select Sound and change Output Devices here.

Question: I use a docking station in my office/company and when I plug the Ethernet cable into the docking station, it is not possible to connect to the internet/local area networks. But when I plug this cable into the LAN connector on my laptop, everything works properly.

A: In some cases, companies restrict Internet/local network connections to network elements with a known MAC address (each LAN connector has its own MAC address).

You can work around this by either manually changing the MAC address of the LAN connector in the docking station, or you can use our i-tec Docker Pro software (Windows only) to clone the MAC address from your laptop to the docking station. i-tec Docker Pro is free and can be downloaded from our website.

https://i-tec.cz/produkt/dockerprosw/

Question: I have a laptop with a Thunderbolt 3/4 or USB-C port, yet the laptop won’t charge.

A: According to the Thunderbolt 3/4 and USB-C specifications, powering the laptop is only optional. Not all laptops allow this option, especially laptops with power supplies over 100W. Also, some manufacturers restrict/block charging from docks/adapters not made by that manufacturer. If you are unsure whether your USB-C port meets these requirements, please contact either the device manufacturer or our technical support: support@itecproduct.com.

Question: My external monitor does not wake up when I wake my laptop from sleep.

A: Try changing the monitor input setting from AUTO to a fixed monitor input.

If after a long time the automatic search for an active port does not find any input,

the monitor may go to sleep so that it no longer responds to the signal from the docking station port.

In case of any problems after waking up, the sleep or hibernation mode on some devices needs to be turned off.

Question: Does this dock/graphics adapter support audio signal transmission via HDMI or DP?

A: Yes, if your monitor (projector) includes integrated speakers, audio signal transmission via HDMI or DP cable is possible. However, you need to change the default audio playback device in your OS settings.

Question: I have connected a standard analog microphone to the dock’s combined audio port, but the microphone does not work. Why?

A: The combo (TRRS) audio port is not compatible with standard analog microphones.

Question: Can I have my product in use permanently (24 hours a day, 7 days a week)?

A: In theory, yes, but continuous operation is not good for product durability and reliability. As with any other device that contains active on-chip components equipped with software or firmware tools, the docking station should be rebooted once in a while, especially in areas where connected devices alternate (typically hot-desking and hot-plugging) to avoid potential problems and keep operation trouble-free. The ideal or recommended usage scenario would be to reboot or shut down the product at least three times a week. Docking stations that are not equipped with an ON/OFF button can be turned off by disconnecting the power supply unit.

Question: On my MacBook 13″/15″ 2016 and later, my WiFi or Bluetooth stops working or USB 3.0 devices connected to the dock disconnect. Where is the problem?

Answer: This problem is caused by interference in the 2.4GHz band. A possible solution is to connect the dock to the Thunderbolt 3/4 (USB-C) port of the Mac on the left side closest to you or use the ports on the right side. These ports are located farthest from the WiFi antenna. Another solution is to use the 5GHz band and place the dock as far away from your Mac’s monitor as possible. For more information, see here: https://support.apple.com/en-us/HT201163

Question: I have your device and the video transfer is not working.

A: Your device must meet the system requirements, especially any DP Alt. mode support on the USB-C port. In case you are unsure about DP Alt. Please contact either the device manufacturer or our technical support:support@itecproduct.com.

Question: Why does only mirroring or only one video output work on my MacBook?

A: Unfortunately, macOS does not support MST technology and is only capable of mirroring both outputs, or only one output can work.

Question: The image through the docking station flickers.

A: If you experience this phenomenon, you may just have the monitor refresh rate set incorrectly. For example, if your refresh rate is set to 59 Hz, please set it to 60 Hz and vice versa. Try switching the monitor mode from DP 1.2 to DP 1.4 and vice versa. Turn off any additional monitor technologies: G-Sync, FreeSync, HDR, etc.

Question: Is it possible to charge HP laptops equipped with Thunderbolt 3/4 with this dock?

A: Hewlett-Packard has implemented a proprietary technology in some of its notebook models that allows charging only when using genuine HP docks. Please check your laptop’s compatibility with your dealer or contact HP Technical Support.

Question: Do I need to install drivers before using the docking station?

A: No, installation is only required on Windows 7, Android and macOS. However, we always recommend installing the latest version of drivers from the site here: Driver

Question: Can I plug another USB-C DP Alt into the USB-C port of the dock? Can I connect a video adapter to the USB-C-C port?

Answer: No, the dock and its USB-C or Thunderbolt port must be adapted for this. We always state this in the specifications.

Question: The LAN connection is not working on my Android.

A: Support for Ethernet connectivity must be supported directly by the tablet manufacturer. You can easily check for support in the settings – “Network Connections” – “Other Networks” – and the “Ethernet” entry must be there.

Question: Everything works for me, but it only shows a speed of 10 Mbps, where is the problem?

Answer: Check all cabling between the PC/NB and the active element and tighten the RJ-45 connectors. It also helps to replace the Ethernet cable between the adapter and the active network element (hub, switch, router) with a certified one. Setting a specific value (instead of Auto Negotiation) in the properties of the network adapters, the Speed & Duplex item may also be a solution.

Question: Where can I download DisplayLink drivers for ChromeOS?

A: There is no need to download or install drivers for ChromeOS. They have been included with ChromeOS since R51. Just plug in the dock.

Question: I’m using ChromeOS and the image on my external monitor is not smooth/blurry.

Answer: In this case, the problem is with an underpowered CPU. In most cases, ChromeOS laptops use less powerful processors and the DisplayLink software uses the CPU exclusively for calculations.

Question: I have a ChromeOS laptop with two external 4K monitors, is there any way to set FullHD resolution on both monitors?

A: Unfortunately, at the moment, you can only set the resolution for one monitor on ChromeOS. The second monitor is set to the maximum possible (native) resolution.

Question: Can I use this dock on Linux?

A: Yes this dock can be used on Linux. Only Ubuntu is officially supported from Linux distributions. But you can download drivers on the internet that have been modified by the Linux community for many other distributions.