Product ID: TB3CDK2DP
For the first time, there is a plug-and-play Thunderbolt 3 docking station that intelligently adapts to your Thunderbolt 3 or USB-C (USB 3.1 Gen 1 and Gen 2) laptop offering optimal performance and compatibility. This revolutionary technology offers IT professionals the solution they need -- one dock for Mac and Windows laptops that are equipped with a USB Type-C port.
"Solutions like StarTech.com's Thunderbolt™ 3 docking station address the rigorous demands of corporate IT with ease of mass deployment, broad PC compatibility and the best user experience" |
With this dedicated dual DisplayPort Thunderbolt 3 dock, you can turn your TB3 or USB 3.1 (Type-C) laptop into a dual-monitor workstation including dual 4K 60Hz resolution on Thunderbolt 3 laptops and dual 1080p on USB-C computers.
Display Configuration | Thunderbolt™ 3 Laptops | USB Type-C® Host Devices |
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Dual 4K 60Hz | ✔ | |
Single 4K 60Hz | ✔ | |
Dual 4K 30Hz | ✔ | |
Single 4K 30Hz | ✔ | ✔ |
Please note that host laptops which do not support MST or Thunderbolt™ 3, support only a single display
This universal Thunderbolt 3 dock (TB3) features plenty of USB 3.0 ports to accommodate up to five USB peripherals and includes a GbE port and audio support:
✔ 3x USB-A Ports (including 1 x Fast-Charge Port)
✔ 2x USB-C Ports (including 1 x Fast-Charge Port)
✔ 1x Gigabit Ethernet Port
✔ 1x 3.5 mm Audio/Mic Port
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Intuitive Setup & Installation |
USB-A & USB-C 3.1 Gen 2 Ports |
Power & Charge with USB |
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Mixed USB Type-C Device Deployments The diversity of hosts this dock can support makes it ideal for "hoteling" or "hot-desking" in shared work environments where you need to accommodate a variety of potential devices. With organizations large and small, the need for a single solution to support everyone is the optimal investment. |
For Mac & Windows Users This dock can support your high-performance users and their Thunderbolt™ 3 Macbook Pros while also being fully compatible with your USB 3.1 Type-C based devices for teams that require more standard functionality. |
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Supports Tablet-Based Workstations
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The TB3CDK2DP, includes a free Windows® application that enables you to better manage your enterprise network security. When you connect to your network through the ethernet port of the dock, the computer's MAC address is typically not broadcast to the network, as your network only sees the MAC address of the docking station. However, the StarTech.com MAC Address Changer or Cloning software enables the USB-C dock to use MAC address spoofing of the connected Windows laptop rather than the MAC address of the dock itself. This ensures your network administrators have full visibility of each device on the network and can monitor and limit activity accordingly. To request access to our MAC Address Changer utility, please contact our Technical Support Department by phone, live chat, or e-mail.
TB3CDK2DP is backed by a StarTech.com three-year warranty and free lifetime technical support.
Warranty Information | Warranty | 3 Years |
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Connector(s) | 1 - Connector Type(s) | USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps) |
3.5 mm Audio | ||
RJ-45 | ||
2 - Connector Type(s) | USB 3.1 USB Type-A (9 pin, Gen 1, 5 Gbps) | |
USB 3.1 USB Type C (10 pin, Gen 2, 10 Gbps) | ||
DisplayPort | ||
1 - Host Connectors | Thunderbolt™ 3 USB-C (24-pin) (40Gbps) | |
Environmental | Operating Temperature | 0 to 65°C |
Storage Temperature | -40 to 65°C | |
Humidity | 0% to 95% (non-condensing) at 25°C | |
Hardware | USB-C Device Port(s) | Yes |
USB-C Host Connection | Yes | |
4K Support | Yes | |
Fast-Charge Port(s) | Yes | |
Displays Supported | 2 | |
Ports | 6 | |
Audio | Yes | |
Bus Type | Thunderbolt 3 | |
USB-C | ||
Port Style | External Hub | |
Compatible Lock Slot | Kensington Standard Slot (K-Slot) | |
Industry Standards | DP 1.2a Version HDCP 1.4 and HDCP 2.2 Compliant | |
Chipset ID | Titan Ridge - JHL7440 Cypress - CCG5C RealTek - RTL8153 Genesys Logic - GL3590 Genesys Logic - GL3523 C-Media - CM6533 | |
Packaging Information | Shipping (Package) Weight | 3.3 lb [1.5 kg] |
Package Length | 6.3 in [16.0 cm] | |
Package Width | 10.7 in [27.2 cm] | |
Package Height | 4.5 in [11.5 cm] | |
Performance | Maximum Digital Resolutions | Thunderbolt 3 Laptops Dual Monitors: 4096 x 2160 USB 3.1 Type C Laptops Dual Monitors: 1920 x 1080 | 1920 x 1200 USB 3.1 Type C Laptops Single Monitor: 3840 x 2160 |
Type and Rate | Thunderbolt 3 - 40 Gbit/s | |
USB 3.1 Gen 2 - 10 Gbit/s | ||
Supported Charging Outputs | BC 1.2 (1.5A) | |
Type and Rate | USB 3.1 Gen 1 - 5 Gbit/s | |
USB 3.0 - 5 Gbit/s | ||
Physical Characteristics | Product Height | 1.2 in [30.0 mm] |
Product Length | 3.1 in [80.0 mm] | |
Weight of Product | 14.1 oz [400.0 g] | |
Product Width | 8.7 in [22.0 cm] | |
Color | Black & Space Gray | |
Material | Plastic | |
Cable Length | 27.6 in [70 cm] | |
Power | Power Source | AC Adapter Included |
Input Voltage | 100 - 240 AC | |
Input Current | 2.5A | |
Output Voltage | 20V DC | |
Output Current | 6.75A | |
Software | OS Compatibility | Windows 10
Windows 8
macOS Big Sur (11.0) macOS Catalina (10.15) macOS Mojave (10.14) macOS High Sierra (10.13) macOS Sierra (10.12) iPadOS Android OS 8.x |
Special Notes / Requirements | Note | Please note that host laptops which do not support MST or Thunderbolt™ 3, support only a single display |
MacBook Air and MacBook Pro systems using the new Apple M1 chip support only a single external display over the Thunderbolt 3 ports, even when connected to a Thunderbolt 3 docking station with more than one video output. This single monitor limitation does not affect Intel-based Macs with Thunderbolt 3. | ||
What's in the Box | 1 - Included in Package | Docking Station |
Universal Power Adapter (NA/JP, ANZ) | ||
Thunderbolt 3 Cable (0.7 m) | ||
Quick-Start Guide |
Connect a DVI monitor to a single-mode DisplayPort output from your computer
Connect a VGA monitor to a DisplayPort-equipped PC
Connect your DP computer to an HDMI display using this converter, which supports UHD resolutions up to 4K at 60Hz
Connect your DVI Dual Link display to a DisplayPort® video source, for high resolution applications
Back-of-Monitor Mounting Plate | For Compatible StarTech.com Docks and Hubs
Wall Mount or Under-Desk Mounting Plate | For Compatible StarTech.com Docks and Hubs
We are always ready to assist you with any questions you may have.
Live Chat (opens in new window)We are always ready to assist you with any questions you may have.
Live Chat (opens in new window)Active adapters are required if adapting DisplayPort to HDMI or DVI monitors. Active adapters use additional chips to make the conversion inside the adapter. Passive DisplayPort to HDMI or DVI will not work with this device.
If you set your display to [email protected] and connect a display to the DisplayPort output on the laptop docking station, your display may flicker. This issue only affects certain monitors and is a result of an interoperability issue between the hardware used in the display and the docking station. This issue is not specific to StarTech.com docking stations.
To resolve this issue, try any of the following:
If your computer is not detecting your Thunderbolt™ 3 device, try the following:
For more information about how to update the software, firmware, drivers, and BIOS or UEFI, refer to the website of the manufacturer of the Thunderbolt 3 host device. The following website includes links to some of the manufacturers of Thunderbolt 3 host devices: https://thunderbolttechnology.net/updates. If the manufacturer of your host device is not listed, you should contact the manufacturer or refer to their website for more information.
For more information about how to check which version of the Thunderbolt software and firmware you are currently using, see the following FAQ: https://www.startech.com/faq/thunderbolt-3-check-software-firmware.
For more information about Thunderbolt 3 host system and motherboard compatibility, refer to the Thunderbolt 3 Compatibility and Troubleshooting guide.
If you are only getting a single display to work with your Thunderbolt™3 device, make sure that your Thunderbolt 3 host device can support two separate DisplayPort lines over Thunderbolt 3.
While Thunderbolt 3 supports dual monitors over a single connection, not all Thunderbolt 3 host devices are designed to meet this requirement. If your Thunderbolt 3 host device does not meet this requirement, you cannot troubleshoot this issue with software, firmware, or driver updates, and you cannot use this device to achieve dual displays over Thunderbolt 3. If you are not sure whether your Thunderbolt 3 host device supports dual monitors, contact your Thunderbolt 3 host device manufacturer.
If you confirmed that your Thunderbolt 3 host device does support dual monitors and you are only seeing a single display, see the following FAQ: https://www.startech.com/faq/thunderbolt-3-update-software-firmware.
For more information about Thunderbolt 3 host system and motherboard compatibility, refer to the Thunderbolt 3 Compatibility and Troubleshooting guide.
When you connect a Thunderbolt™ device to any Windows operating system that can support Thunderbolt 3, a pop-up message appears. To use your Thunderbolt 3 device do one of the following:
Caution! If you select Do Not Connect, only video will pass through on your Thunderbolt 3 device.
If you accidentally set a Thunderbolt™3 device to not connect to your computer when prompted by the system, you can force the software to prompt you again for authentication. To do so, complete the following:
To use a Thunderbolt 3 adapter to output to a display at 60Hz, your monitor must support the refresh rate and you need to set the monitor to work at 60Hz. By default, most monitors are set to DP1.1, which will not work with this Thunderbolt 3 device when you use a display at 60Hz. In most cases, you need to set your monitor's DisplayPort settings to DP1.2.
To resolve this issue, use the buttons on your monitor to change the DisplayPort settings to DP1.2. For more information about changing your monitor settings, refer to the website of the manufacturer of your monitor.
To arrange extended displays on Windows 10, complete the following.
To arrange extended displays on macOS, complete the following.
When you connect a Thunderbolt™ device to any Windows operating system that can support Thunderbolt 3, a pop-up message appears. To use your device, complete the following:
If you accidentally set your Thunderbolt device to Do Not Connect in step three above, refer to the following FAQ: https://www.startech.com/faq/thunderbolt-3-denied-authentication.
If you accidentally set a Thunderbolt™3 device to not connect to your computer when prompted by the system, you can force the software to prompt you again for authentication. To do so, complete the following:
You can use the Thunderbolt™ software to manage your Thunderbolt 3 devices on a computer running a version of Windows. To manage your Thunderbolt 3 devices, complete the following:
Thunderbolt™ 3 is the latest version of the Thunderbolt standard for connecting computers and electronic devices. It is capable of the following:
Thunderbolt 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt 3. This means that a USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection. Therefore, it is important to know whether you have a USB-C or a Thunderbolt 3 host, cable, or device.
To determine if your component is a Thunderbolt 3 device, look for the Thunderbolt 3 symbol (shown below). USB-C devices do not include this symbol. For more information about USB-C, see the following FAQ: https://www.startech.com/faq/usb-c-port-capabilites.
Thunderbolt symbol: https://sgcdn.startech.com/005329/media/products/gallery_large/TBLT3MMXM.B.jpg.
If you use an adapter, Thunderbolt 3 host connections are compatible with Thunderbolt 1 and Thunderbolt 2 devices. You can use the StarTech.com TBT3TBTADAP to make a Thunderbolt 3 host connections backwards compatible.
Thunderbolt 3 devices are not backwards compatible with Thunderbolt 1 and Thunderbolt 2 host connections.
Although the Thunderbolt™ 3 standard is capable of data transfer speeds up to 40Gbps, not every cable can support this bandwidth. For example, cables over a certain length or made with certain materials are only capable of data transfer speeds up to 20Gbps.
To confirm the capability of your Thunderbolt 3 cable, refer to the information provided by the manufacturer. StarTech.com lists the capabilities of the Thunderbolt 3 cables on the individual product pages.
There are two different Thunderbolt 3 cable symbols: the 20Gbps symbol and the 40Gbps symbol. The 20Gbps symbol is composed of the Thunderbolt 3 symbol, and the 40Gbps symbol is composed of the Thunderbolt 3 symbol and the number three. These images are shown below.
Thunderbolt 3 uses the USB-C connector, but not all host connections, cables, and devices with a USB-C connector support Thunderbolt 3. This means that a USB-C device is compatible with a Thunderbolt 3 host connection, but a Thunderbolt 3 device is not compatible with a USB-C host connection. Therefore, it is important to know whether you have a USB-C or a Thunderbolt 3 host, cable, or device.
To determine if your component is a Thunderbolt 3 device, look for the Thunderbolt 3 symbol (shown below). USB-C devices do not include this symbol. For more information about USB-C, see the following FAQ: http://www.startech.com/faq/usb-c-port-capabilites.
Thunderbolt symbol: https://sgcdn.startech.com/005329/media/products/gallery_large/TBLT3MMXM.B.jpg.
No, you cannot use this device to increase the maximum number of displays that a video card supports. For example, if your video card only supports up to three displays and you add this device to your setup, your display limit is still three displays.
If you have connected more than one of this device to the same computer and are experiencing display issues, you should make sure that your video card can support the number of displays that you are using in your setup.
MacBook Air, MacBook Pro 13-inch, and Mac Mini systems using the new Apple M1 chip support only a single external display over the Thunderbolt 3 ports, even when connected to a Thunderbolt 3 docking station or adapter with more than one video output. This limitation also applies to using multiple Thunderbolt or Type C display adapters on both Type C ports. This is not a limitation of StarTech.com products specifically, and Apple lists support for only one external display in the Tech Specs for Video Support on the M1 MacBook Pro 13” [external link to apple.com]. Turning off the laptop display or using clamshell mode does not change this.
One option for docking that allows more than one external display with an Apple M1-based Mac is to use a USB-C DisplayLink-based docking station or video adapter that requires a driver install. One dual monitor example is our DK30CHDDPPD, but please contact StarTech.com support for a recommendation based on your specific setup.
Please note: this single monitor limitation does not affect Intel-based Macs with Thunderbolt 3.
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