Plugable UD-3900PDZ compatibility

All dock models

Units before January 2025 deliver up to 60 W; updated units deliver up to 100 W. The rear label and included supply distinguish them.

Connect the computer

Rear USB-C host port

Screens

HDMI 1 is native video up to 4K30; HDMI 2 and 3 are DisplayLink outputs up to 1920 × 1200 at 60 Hz each.

Charging

The rear label identifies a 60 W or updated 100 W revision; do not infer charging from the shared model name.

Accessories and cable requirements

60 W and 100 W charging revisions share the documented accessory features. USB-C accessory inventory conflicts across the official page.

Ethernet

1 Gb/s

USB accessories

Detailed inventory lists six USB-A 5 Gb/s ports. A FAQ also mentions front USB-C; that conflict remains unresolved.

USB-C video

Native USB-C accessory video is unverified. Use the documented HDMI outputs.

Card readers

No card reader listed.

Audio

3.5 mm TRRS headset jack.

Host cable and extras

Included 0.84 m, 5 Gb/s USB-C host cable. Bring one HDMI cable per screen; check the 60 W / 100 W label.

Published link speeds are ceilings, not measured throughput. The computer, simultaneous traffic, cable and accessory can reduce performance. Documentation reviewed 18 September 2026; not our hardware test.

• Manufacturer specification / revision reference

Connection family: hybrid. Published host-delivery ceiling: 60 W. Actual delivery depends on the host.

Software requirement: DisplayLink-driven outputs need an appropriate driver and permission to install it. Confirm the exact operating system.

Devices with documented options

Some rows establish a supported model; others establish only a connection to investigate. Read the evidence column. Monitor modes and charging are separate checks.

No matching device in this list.

Setup and sources

Read the dock setup guide · Check a complete setup

• Plugable: UD-3900PDZ output-specific specifications
• DisplayLink: macOS screen-recording permission