Overview

The Plugable UD-3900 is a universal USB-C docking station that dramatically expands your laptop's connectivity. With dual HDMI outputs, you can connect two external monitors simultaneously for a powerful multi-display setup. It supports up to 4K@60Hz on each display, making it suitable for productivity, creative work, and everyday use.

Key Features

  • Dual HDMI output: Connect two monitors with maximum 4K@60Hz resolution each. Supports mirroring and extended desktop modes.
  • Versatile port selection: One USB-C data port, three USB-A 3.0 ports, gigabit Ethernet, and a 3.5mm audio jack.
  • 60W Power Delivery: Charges your connected laptop via USB-C (requires included power adapter).
  • Broad compatibility: Works with Windows, macOS, Chrome OS, and iPadOS. Requires USB-C Alternate Mode support on the host device.

Compatibility Guide

This docking station requires a USB-C port on your computer that supports DisplayPort Alternate Mode. It works with Thunderbolt 3 and Thunderbolt 4 ports as well, though maximum resolution may vary depending on cables and devices. On Windows, drivers are not needed for basic functionality; macOS may require additional driver installation for Ethernet. It is not compatible with devices that only support USB 2.0 or older USB standards.

Best For

  • Users with limited ports on their laptop, especially thin-and-light models with only one USB-C port.
  • Those wanting a dual-monitor setup without internal hardware upgrades. Just add two HDMI cables and you are ready.
  • Professionals who move between home, office, and client sites – the compact design makes it easy to pack and use anywhere.

Upgrade Considerations

A docking station itself does not affect PC performance, but running dual 4K@60Hz monitors can stress the integrated GPU. Make sure your laptop has sufficient graphics capability. The 60W power delivery is adequate for ultrabooks and mainstream laptops, but gaming or workstation laptops may need their own high-wattage charger. If your laptop requires more than 60W, consider a docking station with higher PD or use the original charger alongside the dock.