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Thunderbolt™ 3 Dock

High speed Thunderbolt™ 3 Dock with power delivery

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Expand Your Thunderbolt™ 3 Connections

The Thunderbolt™ 3 Dock TD-300 allows you to expand the connectivity of your Thunderbolt™ 3 device. Add a HDMI 4K display, charge your device, daisy chain Thunderbolt™ 3 hard drives, connect USB devices and transfer SD card content all over a single connection.

Multiple Displays

Hook up a Thunderbolt™ 3 display and hook up an HDMI display. The TD-300 will drive two 4K displays over the one Thunderbolt™ 3 connection or one 5K display.


Plug and Play

Simply connect the Thunderbolt™ 3 Dock to any Thunderbolt™ 3 enabled PC or Mac. There are no drivers to download or install.


Endless Posibilities

Connect up to five USB devices, daisy chain up to six Thunderbolt™ 3 devices, connect to a network over Gigabit Ethernet, transfer your photos using the SD 3.0 card slot and connect up to two monitors.



  • Features

    The Thunderbolt™ 3 Dock TD-300 is designed to maximize your Thunderbolt™ 3 enabled Mac or PC. The dock supports power delivery up to 60W as well as five USB 3.0 ports, Gigabit Ethernet, HDMI 4K output, audio jack and a SD card reader. There are no extra drivers needed, simply plug in the dock and connect your devices.

  • Specifications


    2 x Thunderbolt™ 3 Ports
    (only one supports PD up to 60W)
    USB Ports
    5 x USB 3.0 Type-A ports
    (only one supports 5V/1.5A charging)
    SD Reader
    Supports SD 3.0
    HDMI 2.0: 4K@60Hz
    Audio & Microphone
    2.1 CH In/Out
    10/100/1000 BASE-T
    OS Support
    macOS, Windows 10
    Power Adapter
    Input: AC 100-240V
    Output: DC 20V/6.75A
    230 x 88 x 27mm (9.1 x 3.5 x 1.1inch)
    450g/ 0.99lb
    Operation Temperature
    0 ~ 40 ºC (32 ~ 104 ºF)
    Storage Temperature
    -20 ~ 70 ºC (-4 ~ 158 ºF)
    2 years limited warranty
  • Resources


    Promise Technology Introduces Thunderbolt 3 Dock, Expands Possibilities for Creative Professionals

    November 18, 2017

    Promise Technology Inc., a leading storage solutions provider for creative and IT applications, today announced the addition of a Thunderbolt™ 3 dock to its comprehensive lineup of solutions for rich media workflows. Through the new dock, users can add two 4K displays, charge devices, daisy-chain Thunderbolt 3 hard drives, connect USB devices, transfer SD card content, and more – over a single connection. The new TD-300 brings it all together to expand the capabilities of Thunderbolt 3-enabled macOS and Windows 10 platforms. The TD-300 is also an ideal choice for small office/home office users.


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