Plugable UD-3900

Docks

Here is a closer look at Plugable UD-3900.

About

Plugable's long-running dual-monitor DisplayLink dock, updated in 2025 to standardize on two HDMI outputs (retiring the legacy DVI-I port) — 1920x1200@60Hz dual, no laptop charging.

Specs

Max resolution
1920x1200@60Hz
Requires DisplayLink driver
Yes

Ports: 2× HDMI, 2× USB-A 3.0, 4× USB-A 2.0, 1× Ethernet (Gigabit), 1× Audio headphone and 1× Audio microphone

Confirmed with

  • Notebook (generic)

    The original 2013 hardware revision used one DVI-I and one HDMI port; a February 2025 board revision standardized on two HDMI outputs instead, retiring the DVI-I connector permanently. No Power Delivery — the base has no electronics to supply charging current to the host.

    Source: plugable.com
    Confirmed — caveat
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