Head to head
Plugable UD-7400PD vs Plugable UD-3900PDZ
Our pick
Plugable UD-7400PD
For a desk with one cable to the laptop
Why this one
- Choose Plugable UD-7400PD when your compatible laptop needs up to 140 W of host charging through the dock connection.1
Product photographs. Not to scale.
What Plugable UD-3900PDZ offers
One connection to this dock drives three HDMI monitors and charges the laptop at 100 W.2
2 models / at a glance
Key differences
What differs
| Specification | Plugable UD-7400PD | Plugable UD-3900PDZ |
|---|---|---|
| Maximum resolution | 8K3 | 4K2 |
| Laptop charging | 140 W1 | 100 W2 |
| Video outputs | two dedicated HDMI video ports, one version 2.1 (for 8K) and one 2.03 | Number of HDMI Outputs 32 |
| USB-A ports | 21 | 62 |
More details
| Specification | Plugable UD-7400PD | Plugable UD-3900PDZ |
|---|---|---|
| Monitors supported | Up to 53 | 32 |
| DisplayLink chipset | DL-74003 | DL-39004 |