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Targus DOCK220 USB Type-C Thunderbolt 3 Docking Station with Power Delivery

Targus rounds out its docking station line with the versatile high-performance USB Type-C Thunderbolt 3 (an Alternate Mode) DOCK220.  The DOCK220 is Intel certified for both PC and Macbooks.

The DOCK220 supports Dual Role USB Type-C Power Delivery 3.0 for both PC (Windows and Linux) and MacBook hosts.  As a PD Source it supplies up to 85W at the following levels:

  • 5Vdc @ 3A
  • 9Vdc @ 3A
  • 15Vdc @ 3A
  • 20V @ 4.25A

The DOCK220 interfaces and ports include:

  • 1 DRP USB Type-C Female Thunderbolt 3 with PD 3.0 to 85W
  • 1 DFP USB Type-C Female Thunderbolt with DP1.2 Alternate Mode 4096×2160 p60
  • 1 DFP DP1.2 4096×2160 p60
  • 2 DFP USB 3.0 Type-A SuperSpeed ports front/back both supporting BC1.2 charging
  • 1 DFP USB 3.1 Gen 1 Type-C SuperSpeed port front
  • 1 Gigabit Ethernet RJ-45 with WOL
  • 1 3.5mm Female Stereo Audio Output Port
  • 1 3.5mm Female Stereo Audio Input Port
  • Purple Power Applied LED front
  • Kensington Lock Slot
  • Targus VESA100 Bracket Mounting for Dell Monitors

Click on the Targus DOCK220 Ports and Interfaces photo to expand.

The DOCK220 supports up to dual DP1.2 video to dual 4096×2160 p60 (cinema 4K2K) display monitors.  Windows PC OEMs have implemented a subset of Thunderbolt features for some PC models, especially with first generation USB-C Thunderbolt ports, see Thunderbolt 3 Cable, Port and Power Performance Expectations.  Many hosts do not support supplying two discrete full 4-lane DisplayPort 1.2 streams to render two separate 4K2Kp60 monitor displays, see Thunderbolt 3 USB Type-C.

The Thunderbolt 3 ports on the MacBooks support dual DP1.2 (for dual 4K2Kp60) and since the DOCK220 supports up to 85W of PD, its perfect for today’s Macbooks.  To determine if a PC platform supports dual discrete video click here.  For hosts that support dual video via Thunderbolt 3, i.e. the Dell XPS13 9360, one DP monitor is connected utilizing the DP 1.2 port on the DOCK210 and the second monitor to the DOCK210 Downstream Facing USB Type-C Thunderbolt port.  This DFP Thunderbolt port is versatile enough to be used with the Targus ACA932 (DisplayPort), ACA933 (HDMI), and ACA934 (VGA) adaptors for a second display monitor.

Many of the PC OEM docks are utilizing Multi-Stream Transport (MST) and can claim dual video support for their own respective Thunderbolt PC when used with their own proprietary Thunderbolt docking station offerings containing an MST switch.  However, most cannot claim dual 4K2Kp60 when splitting the DP1.2 stream, see DisplayPort Alternate Mode vs. DP Alt. Mode.  By not implementing an MST switch in the DOCK220, Targus has a Thunderbolt dock that supports dual 4K2Kp60 when used with a dual DP 1.2 host, and doesn’t require video compression or MST splitting.

When used with a Thunderbolt host that has only one DP 1.2 stream, the Down Stream Facing Thunderbolt port on the DOCK220 can be used for high speed storage, i.e. a Thunderbolt 3 drive like the one shown here.  This makes the DOCK220 a perfect fit for many applications requiring high-speed access to storage and high-resolution video like CAD/CAM and video editing. 

Comparison to the DOCK410 and DOCK180/190

The DOCK410 takes advantage of the native DisplayPort data on Thunderbolt 3 and DisplayPort hosts and so it is recommended for USB Type-C DisplayPort Alternate Mode and will work with USB Type-C Thunderbolt 3 ports, see Optimizing Your Targus DOCK410 Experience.   It will not work with USB Type-C 3.1 Gen 1/2 ports.

The DOCK180/190 uses the industry standard DL-6950 adaptive compression software for USB SuperSpeed available on USB Type-C Thunderbolt 3, USB Type-C DP Alt. Mode, and USB Type-C 3.1 Gen 1/2 ports.  Its the USB Type-C that always works, see Type-C That Always Works.

The DOCK220 takes advantage of the native DisplayPort data on Thunderbolt 3 hosts and is recommended for USB Type-C Thunderbolt hosts.  It will not work with USB Type-C DP Alt. Mode, DPMF, or USB Type-C 3.1 Gen 1/2 ports.

The Targus DOCK220 product page is shown here.  A draft specification can be accessed by clicking DOCK220 Specifications.

Please contact Targus for more information.

Categories: Main, Thunderbolt

11 replies

  1. Kevin, you write:

    > The DOCK220 takes advantage of the native DisplayPort data
    > on Thunderbolt 3 hosts and is recommended for USB Type-C
    > Thunderbolt hosts.
    > It will not work with USB Type-C DP Alt. Mode or
    > USB Type-C 3.1 Gen 1/2 ports.

    First: There is no such thing as “native DisplayPort data on Thunderbolt 3 hosts”, right? Thunderbolt 3 just includes DisplayPort Alternate Mode by default, right?

    Why do you say that the DOCK220 does not work with (non-Thunderbolt 3) USB-C DisplayPort Alternate Mode ports?

    Are you saying that if a laptop with a normal (non-Thunderbolt 3) USB-C DisplayPort Alternate Mode port is being connected to the Thunderbolt 3 upstream port of the DOCK220, the laptop will not be able to provide a display output?

    Are you sure about that?

    The only difference between a Thunderbolt 3 DisplayPort Alternate Mode port and a non-Thunderbolt 3 USB-C DisplayPort Alternate Mode port is that the Thunderbolt 3 port has a higher theoretical bandwith, right? Both should be fully compatible in regards to DisplayPort Alternate Mode, right?

    Why shouldn’t it be possible to connect a normal (non-Thunderbolt 3) USB-C DisplayPort Alternate laptop to the DOCK220?

    Any laptop with a normal (non-Thunderbolt 3) USB-C DisplayPort Alternate Mode and Power Delivery port should be able to connect to a Thunderbolt 3 docking station and be able to charge and provide display output, right?


    • Hi QP,

      The “native DisplayPort data on Thunderbolt 3 hosts” is meant to describe the DP1.2 stream(s) on TB3. Some platforms provide 2 full 4-lane DP1.2 streams (i.e. today’s MacBooks), others one. See the link in the blog to determine the support for single or dual DP support from the host side.

      While downstream DP Alt. Mode devices, including Alt. Mode docks, will work when connected to TB3, the reverse is not true because the downstream TB docks, including the DOCK220, do not have the (Intel) processor to drive them via the OS.

      Power Delivery is variable in inplemenation but according to Intel, all TB3 ports are to provide at least 15W (5Vdc/3A).


  2. But yet, only one display port……………..*facepalm*


  3. Maybe you can answer this question: Why do so many third party docks refuse to provide more than one Display Port?

    Both HP and Dell TB3 docks have 2 display ports AND a TB3 passthrough port. The HP gets it 100% right with two IDENTICAL display ports.. while the dell has a regular DP and a mini DP for some inexplicable reason.


    • Hi Hunter, While it does support two 4-lane DP 1.2 HBR streams for i.e. dual 4K2K, the Targus DOCK220 is targeted for the bulk of applications wanting a single high-resolution monitor (via the DP port) and high-speed storage (via the DFP TB port). Things like CAD/CAM and video editing.

      Using a Thunderbolt link for dual 4K can chew up around 36Gbps of the 40Gps link. If that is all that is needed, the DOCK220 supports that, and GbE (another 1 Gbps), and what is left for USB peripherals.


      • Thank you for the reply! Can you advise how the StarTech TB32DP2T is able to support 2x 4K@60 monitors over a single TB3 link? Because this product (and the Dell and HP docks) exist, I am frustrated there is not a third-party TB3 dock that can do the same!


      • Hunter, the Targus DOCK220 does support dual 4K@60p, if the host supports it. See the link in the post to determine if a particular host support dual 4K60p. Since the StarTech TB32DP2T is Thunderbolt certified, it too should support dual 4K60p, again if the host does.

        I have seen implementations where an MST switch is used in a dock to support dual monitors, i.e. Lenovo Thunderbolt 3 dock, from a host that only outputs a single stream, i.e. Lenovo T470S, but this is not both at 60p.


      • Thanks again.. I meant I am frustrated there is not a third-party TB3 dock that provides DUAL DISPLAY PORTS in order to take advantage of the dual 4K@60p SUPPORT. Why is this?

        Dell/HP docks DO have this configuration (2+ display ports AND a TB3 passthrough port).

        In other words, not only SUPPORTING dual 4K@60p, but also providing a means to actually USE it out-of-the-box, (without needing a dongle, and without monopolizing the TB3 passthrough port)


      • Yep, I believe I understand the frustration. The port choices really do depend on the target application(s). The DOCK220 is more toward what is covered above.

        Anyway, Targus is considering putting a USB Type-C to DP Full Size Cable in the DOCK220 box. For now, I have used the one from their competitor, Plugable see , and it works well with the Targus DOCK220.


      • Thanks for the link! Unfortunately the USB-C>DP cable would monopolize the only TB3 passthrough port, making it a non-starter for me. I anxiously await a TB3 dock with dual display ports AND a TB3 passthrough!



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