Here is where I found the reference to dual 5K monitor support (1.3 release notes):
Release Notes
C.4 Changes in 1.3 release
----------------------------
- Added native support for Mac using the Apple M1 chip with new universal binary
- Added Retina resolutions on 4K displays (32677)
- Addressed tearing detected in some high load cases (32648)
C.3 Changes in 1.2 release
----------------------------
- Introducing support for Mac using the Apple M1 chip
-
Dual 5K Ultrawide (5120x1440 @ 60 Hz) displays now supported on DisplayLink DL-6950 products
- Create technical support requests directly from the application
- Improved stability and reliability
- Monitors light-up quicker after login (32264)
- Fixed stretched image on some monitors (32531)
- Monitor preferred mode is now selected first (32531)
- Added command line option to enable autostart of the application
- Improved application architecture
However, this does seem to disagree with the notes here:
https://support.displaylink.com/knowledgebase/articles/525038
ASIC Family | DisplayPort | HDMI | DVI | VGA |
---|
DL-125 | Not supported | Not supported | 1600x900 or 1400x1050 | 1600x900 or 1400x1050 |
DL-165 | Not supported | Not supported | 1920x1080 or 1600x1200 | 1920x1080 or 1600x1200 |
DL-195 | Not supported | Not supported | 2048x1152 | 1920x1080 |
DL-3100 | Not supported | Not supported | 2048x1152 | 1920x1080 |
DL-3500 | 2560x1600 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-3700 | 2560x1600 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-3900 | 2560x1600 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-3950 | 2560x1600 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-5500 | 3840x2160p30 | 2048x1152 (using DP++ adapter) | 2048x1152 (using DP++ adapter) | 1920x1080 (using DP++ adapter) |
DL-5700 | 3840x2160p30 | 2048x1152 (using DP++ adapter) | 2048x1152 (using DP++ adapter) | 1920x1080 (using DP++ adapter) |
DL-5900 | 3840x2160p30 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-5910 | 3840x2160p30 | 2048x1152 or 2560x1440p50 | 2048x1152 | 1920x1080 |
DL-6950 | 4096x2160p60
(Cinema 4K)
5120x1440p60
(5K UItrawide) | 4096x2160p60 (Cinema 4K) | 2048x1152 | 1920x1080 |
Points to note:
- The available resolutions through the OS display configuration will be restricted to those supported by the display. If the display does not report the maximum resolution as supported, it will not be available to the user to select.
- If connecting multiple displays to multiple video outputs, where only one output can be active at a time, the active display will be enabled using the following priority order: DisplayPort, HDMI, DVI, VGA.
- If using the DL-6950, the maximum resolution will be 3840x2160 (UHD) if both video outputs are being used.
- If using the DL-3900 or DL-5900, which supports dual outputs, resolutions above 2048x1152 will be unavailable if a second display is connected. If wanting to use the DL-3900 with resolutions above 2048x1152, disconnect the second display.
- Monitors which have DisplayPort Multi-stream Transport (MST) should have this feature disabled when used as MST is not currently supported.
- Dual link DVI is not supported by any of DisplayLink ICs.