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Mini Thunderbolt 3 Dock for Laptops - Mac and Windows - Dual DisplayPort - 4K 60Hz

Product ID: TB3DKM2DP


Create a dual-monitor bus powered workstation, with two 4K DisplayPort displays, one USB 3.0 and Gigabit Ethernet port, and flexible desktop setup with extended length cable

  • Connect two UHD 4K 60Hz DisplayPort monitors to your laptop through a single Thunderbolt 3 port, or add a single 5K 60Hz display

  • macOS and Windows compatible

  • Connect a USB device to the USB 3.0 Type-A port (backward compatible with USB 2.0 and 1.x devices)

More Features . . .
  • Gigabit Ethernet RJ45 port adds wired network connectivity to your workstation

  • Thunderbolt Certified

Available in
¥21,602 JPY exc tax
¥23,330 inc tax


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This Thunderbolt™ 3 docking station packs big performance into a compact mini dock, delivering 4K UHD video performance to two DisplayPort monitors simultaneously. Compatible with macOS and Windows™, it’s the ideal accessory for your MacBook Pro, Dell™ XPS or other Thunderbolt 3 laptop.

Connect two UHD 4K displays at 60Hz

Great for editing 4K video or other Ultra HD tasks, the Thunderbolt 3 dock, with 40Gbps of throughput, supports 4K resolution at 60Hz on two DisplayPort monitors, through a single Thunderbolt 3 port. Run resource-demanding applications on two independent displays (at up to 4096 x 2160p resolutions) without draining system resources. You can also connect a single 5K 60Hz display to your laptop.

The ports you need most

To enhance your productivity, the Gigabit Ethernet port ensures reliable wired network access. Plus, a USB 3.0 Type-A port, with ample space around it, lets you connect a USB device, like a flash drive, for easy file access. 

Designed for easy portability

This mini Thunderbolt 3 dock offers a versatile solution for permanent and shared office workspaces, with a compact design that’s portable enough to take with your laptop wherever you go. It’s bus-powered, with no external power required. For flexible setup, the attached USB-C cable has an extended length of 20 cm.

The TB3DKM2DP is backed by a StarTech.com 3-year warranty and free lifetime technical support.

Compatible With

View full OS compatibility

Windows® 7, 8, 8.1, 10
macOS 10.12 - 10.13

  • Review or edit images, video or media files on two 4K displays
  • Ideal size for shared or temporary work environments, such as hot desks
  • Compact design with built-in cable for portable convenience
Product Numbers
Warranty Information
Warranty 3 Years
4K Support Yes
Bus Type Thunderbolt 3
Chipset ID Intel - Alpine Ridge JHL6540
Intel - WGI210AT
Texas Instruments - TPS65983
ASMedia - ASM1042A
Displays Supported 2
Fast-Charge Port(s) No
Industry Standards Thunderbolt 3
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
USB 3.0 - Backward compatible with USB 2.0 and 1.1
Auto MDIX Yes
Compatible Networks 10/100/1000 Mbps
Full Duplex Support Yes
Maximum Data Transfer Rate 40 Gbps (Thunderbolt 3)
5 Gbps (USB 3.0)
2 Gbps (Ethernet; Full-Duplex)
Maximum Digital Resolutions Dual 4K displays - DisplayPort 4096 x 2160p @ 60Hz / 3840 x 2160p @ 60Hz
Single 5K display - DisplayPort 5120 × 2880 @ 60Hz
Type and Rate Thunderbolt 3 - 40 Gbit/s
UASP Support Yes
Connector Type(s) 1 - Thunderbolt™ 3 USB-C (24-pin) Male
2 - DisplayPort (20 pin) Female
1 - USB Type-A (9 pin) USB 3.0 Female
1 - RJ-45 Female
OS Compatibility Windows® 7, 8, 8.1, 10
macOS 10.12 - 10.13
Special Notes / Requirements
Note A 4K-capable display is required to achieve 4K x 2K resolution (4K is also known as 4K x 2K).
A 5K-capable DisplayPort display is required to achieve 5120 × 2880 resolution.
Certain monitors may be limited to 4K at 30Hz when connecting through DisplayPort. These monitors include the following models: Dell P2715Q, Viewsonic VX2475Smhl-4K, Philips 288P6LJEB, LG 31MU97C-B, Asus PB287Q (these models will need to be set to 4K at 30Hz).
Active adapters are required if adapting DisplayPort to HDMI/DVI/VGA monitors.
System and Cable Requirements Thunderbolt 3 equipped computer with a Thunderbolt 3 port.
Power Source USB-Powered
Humidity 5~95% RH (Non-condensing)
Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -40°C to 70°C (-40°F to 158°F)
Physical Characteristics
Cable Length 7.9 in [200 mm]
Product Height 0.7 in [18.8 mm]
Product Length 4.7 in [120 mm]
Product Weight 5.1 oz [145.8 g]
Product Width 2.4 in [60 mm]
Packaging Information
Shipping (Package) Weight 9.5 oz [268.2 g]
What's in the Box
Included in Package 1 - Thunderbolt 3 dock
1 - instruction manual
DisplayPort to HDMI 4K Audio / Video Converter – DP 1.2 to HDMI Active Adapter for Desktop / Laptop Computers  – 4K @ 30 Hz

¥3,672 exc tax
¥3,965 inc tax

DisplayPort to DVI Active Adapter

DisplayPort to DVI Active Adapter

Connect a DVI monitor to a single-mode DisplayPort output from your computer

¥5,328 exc tax
¥5,754 inc tax

DisplayPort to VGA Video Adapter Converter

DisplayPort to VGA Video Adapter Converter

Connect a VGA monitor to a DisplayPort-equipped PC

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* Product appearance and specifications are subject to change without notice.