Yes. The UD-3900C4 can be used with compatible Intel and Apple Silicon Mac computers, but macOS supports a maximum of three unique extended displays through this docking station.

Why Are Only Three Unique Displays Supported on macOS?

The UD-3900C4 uses two different display technologies for its four HDMI outputs.

HDMI 1 and HDMI 2 use DisplayLink technology. These two displays can operate as independent extended displays on macOS when you install and configure the DisplayLink Manager application.

HDMI 3 and HDMI 4 use the Mac's native DisplayPort video output. macOS does not support Multi-Stream Transport (MST), so these two outputs cannot function as separate extended displays. Instead, HDMI 3 and HDMI 4 will mirror each other.

This allows the UD-3900C4 to provide up to three unique extended displays on a Mac:

Two displays through HDMI 1 and HDMI 2 using DisplayLink

One unique native display across HDMI 3 and HDMI 4

How Do I Set Up DisplayLink on macOS?

DisplayLink Manager must be installed and configured for displays connected to HDMI 1 and HDMI 2 to function on macOS.

For the latest DisplayLink Manager software, installation information, and downloads for older supported macOS versions:

https://plugable.com/pages/displaylink

Applicable To

• UD-3900C4