Plugable TBT4-UDX1 Review 2026 - Specs, Pros & Cons

Name: Plugable Thunderbolt 4 & USB4 HDMI Docking Station with 96W Charging
Brand: Plugable
SKU: TBT4-UDX1

The Plugable TBT4-UDX1 is an 11-port Thunderbolt 4 and USB4 dock built around a simple idea: keep the video layout straightforward, but leave room for Thunderbolt peripherals. It has one built-in HDMI 2.0a output, two downstream Thunderbolt 4 ports, four 10Gbps USB-A ports, 2.5 Gigabit Ethernet, a UHS-II SD card reader, and a 3.5mm headset jack. Plugable includes a USB-C to HDMI adapter in the box, so the second Thunderbolt port can drive another HDMI monitor without forcing you to buy an adapter on day one. The dock supports two 4K@60Hz displays or one 8K@30Hz display, with the usual Apple Silicon limits: base M1 and M2 MacBooks only drive one external display, base M3 models need clamshell mode for two displays, and Pro/Max chips have fewer restrictions. Power delivery is rated at 96W to the host, fed by a 135W external power adapter. The two downstream Thunderbolt ports can each provide up to 15W, but that power comes out of the same budget. Plugable notes that host charging drops to 81W with one Thunderbolt device attached and 66W with two. That trade-off matters if you run a larger laptop and bus-powered storage at the same time.

Pros & Cons

What We Like

Two downstream Thunderbolt 4 ports leave room for fast storage, USB4 devices, or a second display
Dual 4K@60Hz display support with a USB-C to HDMI adapter included in the box
96W certified laptop charging covers most ultraportables and many larger work laptops
2.5 Gigabit Ethernet is faster than the Gigabit ports still common on many docks
Four 10Gbps USB-A ports are useful for existing keyboards, receivers, drives, and accessories
UHS-II SD card reader is faster than the basic UHS-I slots found on cheaper docks

What Could Be Better

Host charging drops when downstream Thunderbolt devices draw power
Workaround: Use a separate laptop charger for power-hungry workstations, or avoid running two bus-powered Thunderbolt devices from the dock at the same time.
No DisplayPort output and only one built-in HDMI port
Workaround: Use the included USB-C to HDMI adapter, or choose a dock like the Plugable TBT4-UDZ if you need multiple built-in video outputs.
HDMI output is limited to HDMI 2.0a, so this is not a high-refresh gaming monitor dock
Workaround: Use it for 4K@60Hz productivity displays. For HDMI 2.1 or high refresh rates, look at a different dock or connect the display directly to the laptop.
Base M1 and M2 MacBooks remain limited to one external display
Workaround: MacBook Air and base MacBook Pro users who need two external displays should use a DisplayLink dock instead.
No microSD reader
Workaround: Use a USB card reader if you work with microSD cards.

Display Support

Max Displays: 2

2 displays (Dual 4K@60Hz using the built-in HDMI 2.0a port plus the included USB-C to HDMI adapter on a downstream Thunderbolt 4 port.)

3840x2160 @ 60Hz

1 display (Single 8K@30Hz through a downstream Thunderbolt 4 port with a compatible Thunderbolt or USB-C display path.)

7680x4320 @ 30Hz

1 display (Single 4K@60Hz via the built-in HDMI 2.0a port or a downstream Thunderbolt 4 port. Plugable also lists 4096x2160@60Hz, but this site normalizes 4K UHD as 3840x2160.)

3840x2160 @ 60Hz

Ports & Connectivity

USB Ports

1x USB-A 3.2 7.5W

3x USB-A 3.2

2x USB-C 4.0 15W

Video Outputs

1x HDMI 2.0a

2x Thunderbolt 4

Network

1x Ethernet (1 Gbps / 2.5 Gbps)

Audio

1x 3.5mm combo

Card Readers

1x SD (UHS-II (312 MB/s))

Full Specifications

General
Manufacturer	Plugable
Model	TBT4-UDX1
Release Date	2023-10
MSRP	$349.99
Connectivity
Host Connection	Thunderbolt 4
Max Data Rate	40 Gbps
Driver Required	No (native)
Display Output
Max Displays	2
2x Display	3840x2160 @ 60Hz (Dual 4K@60Hz using the built-in HDMI 2.0a port plus the included USB-C to HDMI adapter on a downstream Thunderbolt 4 port.)
1x Display	7680x4320 @ 30Hz (Single 8K@30Hz through a downstream Thunderbolt 4 port with a compatible Thunderbolt or USB-C display path.)
1x Display	3840x2160 @ 60Hz (Single 4K@60Hz via the built-in HDMI 2.0a port or a downstream Thunderbolt 4 port. Plugable also lists 4096x2160@60Hz, but this site normalizes 4K UHD as 3840x2160.)
Ports (9+ total)
USB-A 3.2	1x (7.5W)
USB-A 3.2	3x
USB-C 4.0	2x (15W)
HDMI 2.0a	1x
Thunderbolt 4	2x
Ethernet (RJ45)	1x 1 Gbps / 2.5 Gbps
Audio (3.5mm-combo)	1x
SD Card Reader	1x
Power
Power Input	DC-barrel
Laptop Charging	Up to 96W

Compatibility

Windows (10+)

Compatible with Windows 10 and later on Thunderbolt 4 or USB4 hosts. Windows systems may need Thunderbolt approval, firmware updates, or the optional Realtek Ethernet driver.

macOS (11.2 (Big Sur)+)

Compatible with macOS 11.2 and later. Dual display support depends on the Mac chip: M1/M2 Pro or Max and M3 Pro or Max support dual displays, base M3 requires clamshell mode, and base M1/M2 support one external display. Plugable lists base M4/M5 and Pro/Max systems as dual-display capable.

Known Issues

Base M1 and M2 MacBook Air/Pro

Limited to one external display

Host computers without Thunderbolt 4 or USB4

Not compatible

High-power Thunderbolt peripherals plus large laptops

Reduced host charging wattage

7.8 /10

Our Verdict

Very Good

The Plugable TBT4-UDX1 makes the most sense for people who want a native Thunderbolt dock with dual 4K display support and at least one spare downstream Thunderbolt port. It is not the biggest dock Plugable sells, and that is part of the appeal. The TBT4-UDZ is better for Windows users who need three or four monitors. The TBT4-UDX1 is cleaner for a two-monitor desk with Thunderbolt storage, a fast wired network, and a few USB-A accessories. Reviewers generally landed in the same place: AppleInsider liked the two downstream Thunderbolt 4 ports and called it a robust solution, while Tech Advisor saw it as a middle-ground dock for users who need two 4K displays and one downstream Thunderbolt port left over. XDA was more cautious, arguing that the port mix is solid but the price is harder to justify next to Plugable's larger docks. I agree with that split. At its common $249.95 street price, this is a practical Thunderbolt 4 dock with useful ports and a good support story. At the $349.99 list price, the missing DisplayPort output, lack of microSD slot, and HDMI 2.0a ceiling feel harder to ignore. Buy it if you value the downstream Thunderbolt ports. Skip it if you need quad displays, HDMI 2.1 gaming features, or maximum ports per dollar.

Frequently Asked Questions

Does the Plugable TBT4-UDX1 support dual monitors?

Yes, the Plugable TBT4-UDX1 supports two displays up to 4K@60Hz. The usual setup is one monitor on the built-in HDMI 2.0a port and a second monitor through the included USB-C to HDMI adapter connected to a downstream Thunderbolt 4 port. Mac display support depends on the Mac chip.

How much power does the Plugable TBT4-UDX1 deliver to a laptop?

The dock delivers up to 96W of certified USB-C Power Delivery to the host laptop. Plugable notes that host charging drops to 81W when one downstream Thunderbolt device is drawing power and to 66W when two downstream Thunderbolt devices are drawing power.

Does the Plugable TBT4-UDX1 work with MacBook Air?

It works with MacBook Air models that have compatible Thunderbolt or USB4 ports, but display limits vary. Base M1 and M2 MacBook Air models support one external display. Base M3 MacBook Air can support two external displays only in clamshell mode. Plugable lists base M4 and M5 systems as dual-display capable.

Does the Plugable TBT4-UDX1 need DisplayLink drivers?

No. The TBT4-UDX1 is a native Thunderbolt 4 and USB4 dock, not a DisplayLink dock. It normally works without display drivers. Windows users may need the Realtek Ethernet driver for best wired network performance.

What is the difference between the Plugable TBT4-UDX1 and TBT4-UDZ?

The TBT4-UDX1 is an 11-port dual-display dock with two downstream Thunderbolt 4 ports and one built-in HDMI port. The TBT4-UDZ is a larger 16-port dock aimed at users who need more built-in video outputs and, on compatible Windows systems, up to four 4K displays. Choose the UDX1 for a cleaner two-monitor Thunderbolt setup. Choose the UDZ for maximum display count.