Head to head
Plugable UD-3900Z vs Plugable UD-ULTC4K
Our pick
Plugable UD-ULTC4K
DisplayLink Docking Stations
Why this one
- This dock runs three monitors at up to 4K 60Hz and charges a laptop at 100 W.1
Product photographs. Not to scale.
What Plugable UD-3900Z offers
Two HDMI outputs give a desk with two HDMI monitors a single dock connection, while your laptop keeps its separate charger.23
2 models / at a glance
Key differences
What differs
| Specification | Plugable UD-3900Z | Plugable UD-ULTC4K |
|---|---|---|
| Monitors supported | 22 | 31 |
| Laptop charging | 0 W3 | 100 W1 |
| Video outputs | 2 x HDMI ports2 | 3x HDMI 2.0 or DisplayPort 1.21 |
| USB-A ports | 63 | 41 |
More details
| Specification | Plugable UD-3900Z | Plugable UD-ULTC4K |
|---|---|---|
| Maximum resolution | 2560×1440 (Tested configuration: single native HDMI display at 50Hz)2 | 4K 60Hz1 |
| DisplayLink chipset | DisplayLink DL-39002 | DL-6950 DisplayLink1 |