Article Number: 000124312
This article provides guidance on using an Apple USB-C host (example: MacBook Pro) with the Dell Thunderbolt Dock WD19TB/WD19TBS/WD22TB4 and explains the limitations or issues one might encounter when using them together.
The Dell Thunderbolt Dock with v220.127.116.11 update (which includes NVM43 firmware) was certified by Apple through an independent third-party laboratory to work with Apple USB-C hosts. The known functionality provided by the dock when connected to an Apple USB-C host is outlined below.
|Apple USB-C Host||External Displays||Port Functionality|
|MacBook Pro, MacBook Air w/
Thunderbolt 3 (USB-C) ports
|Up to Dual 4K@60Hz*
Up to Single 5K@60Hz
|Thunderbolt, USB & Ethernet|
|MacBook w/ USB-C port||Up to Single 4K@60 Hz**||USB & Ethernet|
|iPad Pro w/ USB-C port||Up to Single 5K@60 Hz**||USB & Ethernet***|
Table 1. Apple USB Type-C dock functionality*Refer to the Dual Monitor Setup section below for more information on dual monitor connections through WD19TB/WD19TBS/WD22TB4.
Below are some known functionality limitations when using WD19TB/WD19TBS/WD22TB4 Dock with Apple USB-C host systems. A comparison with Dell commercial notebooks is shown to clearly bring out the limitations
|Functionality||Dell Commercial Notebooks||Apple USB-C Host|
|Multi-Stream Transport (MST) support for monitors "Extended Desktops" mode||Yes||No (workaround required*)|
|Dock power button emulates system power button||Yes||No|
|Dock cable LED||Yes||Yes|
|Power Delivery||Up to 130 Watts||Up to 90 Watts|
|Audio through 3.5mm headset jack**||Yes||No|
|MAC address pass-through||Yes||No|
|Wake on Dock||Yes||No|
|Wake on LAN||Yes||No|
|Firmware update via system native OS (Firmware Update Utility)||Yes||No (Must be connected to a Dell Windows OS system)|
Table 2. WD19TB/WD19TBS dock functionality comparison when connected to a Dell Commercial Notebook vs. Apple USB-C Host*Refer to the Dual Monitor Setup section below for more information on dual monitor connections through WD19TB. Dual external monitor support is not available on MacBooks with M1 chip due to a limitation of the M1 chip.
** WD19TBS/WD22TB4 are not equipped with 3.5mm audio connections.
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To connect to two monitors in "Extended Desktops" mode, connections should be made only in the way as shown in either of the figures below. This limitation is due to lack of support for Multi Stream Transport in MacOS.
Figure 1. Dual Monitor Setup-1 with WD19TB/WD19TBS dock connected to an Apple USB-C Host
*This setup uses daisy chaining with Thunderbolt monitors
Figure 2. Dual Monitor Setup-2 with WD19TB/WD19TBS/WD22TB4 dock connected to an Apple USB-C Host
Dell Technical Support can troubleshoot when Dell docks are used with Dell systems but cannot troubleshoot when Dell docks are used with non-Dell systems. For non-Dell computer system issues, contact the computer manufacturer. In this case, Apple.
Dell Thunderbolt Dock - WD19TB, Dell Thunderbolt Dock – WD19TBS, Dell Thunderbolt Dock – WD22TB4
12 May 2022