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Small black cube USB-C dock with HDMI Ethernet and three USB ports

Plugable

Plugable Technologies UD-CUBE Mini Docking Station 1x HDMI 4K 30Hz Ethernet 2x USB 2.0 1x USB 3.0 130g Black

SKU CH-GMXH-JE82G

A compact cube that adds 4K 30 Hz HDMI, gigabit Ethernet and three USB ports through one USB-C link

  • Port details1 x HDMI, Ethernet, 3 x USB
  • Product colorBlack
  • Connect one 4K HDMI monitor at 30Hz via USB-C Alt Mode
  • Add wired gigabit Ethernet plus three USB ports through a single cable
  • Pocket-sized 130 g cube fits in a palm for travel or hot-desking
  • Works with Thunderbolt 3 and USB-C hosts that support DisplayPort Alternate Mode
  • Direct GPU pipeline delivers native display performance up to host capabilities

Pocket-Sized Connectivity Hub

The Plugable UD-CUBE is a compact docking station that adds an HDMI display output, gigabit Ethernet and three USB ports through a single USB-C connection. Weighing 130g, the cube-shaped unit fits in a palm and is intended for mobile professionals who need quick expansion at a desk or in a meeting room. It supports Windows, Mac and Chromebook hosts that provide DisplayPort Alternate Mode over their USB-C port.

Best for Single-Screen Mobile Work

This dock suits users who need one external monitor up to 4K at 30Hz alongside a wired network link and a mix of USB 2.0 and USB 3.0 peripherals. It does not charge the host laptop, so buyers who require power delivery through the dock should consider a different solution. Systems without Alt Mode video support cannot drive the HDMI output.

Host Port Must Support Alt Mode Video

The single specification that determines compatibility is whether the host USB-C port implements DisplayPort Alternate Mode for video output. Without that capability the HDMI port will remain inactive regardless of the operating system or Thunderbolt 3 support. Check the laptop manual for Alt Mode confirmation before purchase.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $54.99
Cheaper than about 65% of the 1,970 comparable items (median $81.99).

Specifications

Product
Brand namePlugable Technologies
Product colorBlack
Ports & slots
Port details1 x HDMI, Ethernet, 3 x USB
Size & build
Shipping weight0.44 kg
Package size163 × 135 × 46 mm

Questions about this item

How do I install the UD-CUBE and what step is often missed?

Connect the dock to a USB-C port that supports DisplayPort Alternate Mode, then attach the HDMI monitor and peripherals; the step often missed is confirming the host port supports Alternate Mode video.

What maintenance or replacement will the UD-CUBE need later?

The dock has no user-serviceable parts or consumables; if the USB-C cable or HDMI connector wears out, the entire unit would need replacement.

What limit appears first during sustained use of the UD-CUBE?

The HDMI output is limited to 4K at 30Hz, so extended sessions at that resolution will hit the refresh-rate ceiling before other interfaces saturate.

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