Article Number: 000124312
The WD19TBS dock with v220.127.116.11 update (which includes NVM43 firmware) and the WD22TB4 dock with 00.00.07.01 update (which includes NVM36 firmware) was certified by Apple. 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 or 4 ports (USB-C)
|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*See the Dual Monitor Setup section below for more information about dual monitor connections through WD19TB/WD19TBS/WD22TB4.
Below are some known functionality limitations when using WD19TB/WD19TBS/WD22TB4 Dock with Apple USB-C host computers. A comparison with Dell commercial laptops 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*)|
|The dock power button emulates the computer power button.||Yes||No|
|Dock cable LED||Yes||Yes|
|Power Delivery||Up to 130 Watts||Up to 90 Watts|
|Audio through 3.5 mm headset jack**||Yes||No|
|MAC address pass-through||Yes||No|
|Wake on Dock||Yes||No|
|Wake on LAN||Yes||No|
|Firmware update using computer native operating system (Firmware Update Utility)||Yes||No (Must be connected to a Dell Windows operating system computer).|
Table 2. WD19TB/WD19TBS/WD22TB4 dock functionality comparison when connected to a Dell Commercial Notebook vs. Apple USB-C Host*See the Dual Monitor Setup section below for more information about dual monitor connections through WD19TB, WD19TBS, and WD22TB4. Dual external monitor support is not available on MacBooks with an M1 chip due to a limitation of the M1 chip.
** WD19TBS/WD22TB4 are not equipped with 3.5 mm audio connections.
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To connect to two monitors in "Extended Desktops" mode, connections should be made only in the way that is shown in either of the figures below. This limitation is due to a lack of support for Multi-Stream Transport in macOS.
Figure 1. Dual Monitor Setup-1 with WD22TB4 dock that is connected to an Apple USB-C Host. Monitors are connected to the dock using a dual Thunderbolt connection.
Figure 2. Dual Monitor Setup-2 with WD19TB/WD19TBS/WD22TB4 dock that is connected to an Apple USB-C Host. Monitors connected to the dock using Thunderbolt and DisplayPort/HDMI/DisplayPort over USB Type-C connections.
*This setup uses daisy chaining with Thunderbolt monitors (Figure 3).
Figure 3. Dual Monitor Setup-2 with WD19TB/WD19TBS/WD22TB4 dock that is connected to an Apple USB-C Host. The first monitor is connected to the dock using Thunderbolt and the second monitor is daisy-chained to the first.
Dell Technical Support can troubleshoot when Dell docks are used with Dell computers but cannot troubleshoot when Dell docks are used with non-Dell computers. For non-Dell computer issues, contact the computer manufacturer. In this case, Apple.
Dell Thunderbolt Dock - WD19TB, Dell Thunderbolt Dock – WD19TBS, Dell Thunderbolt Dock – WD22TB4
18 Jan 2023