Plugable TBT4-UDZ

Read the display groups before buying adapters

On supported Windows Thunderbolt 4 or USB4 systems with the required DP 1.4 HBR3 and DSC capabilities, Plugable documents up to four 4K60 screens. Some hosts must disable the built-in display. Mac use is limited to the host’s native display support and the dock’s two display groups; base M1/M2 systems do not become dual-display computers through this dock.

The downstream USB-C socket is not another Thunderbolt port

The rear USB-C accessory connection is for USB data and charging, not a Thunderbolt peripheral or USB-C display. That matters if an expensive monitor or storage device expects Thunderbolt downstream. The useful extras instead include 2.5Gbps Ethernet, card readers, and multiple USB connections.

Use the dock’s detailed matrix as the purchase checklist

Host charging is listed at up to 100W. For displays, start with the exact laptop and monitor resolution, then select a supported connection arrangement. Do not assume an active four-screen Windows example also applies to a Mac. If you need to convert a DisplayPort output, the manufacturer requires an active adapter rather than a passive DP++ adapter.

Connections & compatibility

Connection to laptop

Thunderbolt 4/3, USB4, or supported USB-C with reduced modes

Display technology

thunderbolt

Maximum displays (conditions apply)

4

Power to laptop (W)

100

HDMI sockets

2

DisplayPort sockets

2

Wired network

2.5 Gigabit Ethernet

USB peripherals

7 USB accessory ports; rear USB-C is USB data only

Display requirements

Up to 4 × 4K60 on specified Windows TB4/USB4 hosts; Mac maximum two subject to host

Mac notes

Native limits apply; base M1/M2 one external display

Windows notes

Windows 10+ on the specified native-video host; display modes depend on GPU/DP capabilities

These are published specifications, not results from hands-on testing. Maximum screen counts depend on the laptop, operating system, connection and chosen resolution.