StarTech TB4CDOCK Thunderbolt 4 Dock Review 2026

Name: StarTech TB4CDOCK Thunderbolt 4 Dock
Brand: StarTech.com
SKU: TB4CDOCK

The StarTech TB4CDOCK is a Thunderbolt 4 certified docking station built around pure Thunderbolt connectivity - no dedicated HDMI or DisplayPort outputs, just four Thunderbolt 4/USB4 ports that handle everything from displays to high-speed storage. Released in early 2022, it targets IT professionals and Mac-heavy workplaces where Thunderbolt displays are common and USB-C native connections are the norm. The dock ships with a 0.8m Thunderbolt 4 cable that plugs into a front-facing host port, delivering 96W of power delivery to the connected laptop - more than the 90W offered by many competing docks. Three downstream Thunderbolt 4 ports on the rear handle monitors and peripherals simultaneously, supporting dual 4K at 60Hz or a single 8K display. The rear also has three USB-A 3.2 Gen 2 ports running at 10 Gbps and Gigabit Ethernet. Up front, a USB-A 2.0 port with BC 1.2 charging, an SD 4.0/UHS-II card reader, and a 3.5mm combo audio jack round out the port selection. StarTech includes several IT-oriented tools in the companion software: MAC Address Pass-Through for network security, WiFi Auto Switching, USB Event Monitoring, and a Windows Layout manager. The dock also supports daisy-chaining up to five Thunderbolt devices from its downstream ports. Two Kensington-style security slots sit on the sides for office deployments where physical security matters.

Pros & Cons

What We Like

96W host power delivery exceeds the 90W common to most competing Thunderbolt 4 docks, handling 13 to 16-inch laptops without supplemental charging
Three downstream Thunderbolt 4 ports support dual 4K at 60Hz or single 8K display, plus high-speed storage and peripherals simultaneously
Three-year warranty is longer than the one or two years offered by Razer, Belkin, and most consumer-focused docks
IT management tools - MAC Address Pass-Through, WiFi Auto Switching, USB Event Monitoring - add enterprise value not found in consumer docks
SD 4.0/UHS-II card reader handles fast media cards up to 312 MB/s
Supports daisy-chaining up to five Thunderbolt devices from downstream ports

What Could Be Better

No dedicated HDMI or DisplayPort outputs; all video connections require USB-C to HDMI or DisplayPort adapters
Workaround: Use a certified USB-C to HDMI 2.0 or DisplayPort 1.4 active cable for 4K at 60Hz. Passive adapters may cause signal issues at higher resolutions or longer cable runs.
Gigabit Ethernet only - no 2.5 Gbps network port found in CalDigit TS4 and other premium docks
Workaround: Use one of the downstream Thunderbolt 4 ports with a USB-C to 2.5GbE adapter if your network supports speeds above 1 Gbps.
Downstream Thunderbolt 4 ports reported to deliver roughly one-third of rated power in PCWorld testing, which can prevent recognition of power-hungry external SSDs
Workaround: Use bus-powered SSDs that draw less than 5W at connection, or connect storage via a self-powered enclosure.
No USB-C display compatibility list from StarTech means you may need to test your specific monitor before committing to a cableless setup

Display Support

Max Displays: 2

1 display (Single 8K at 30Hz via one downstream Thunderbolt 4 port using Display Stream Compression)

7680x4320 @ 30Hz

1 display (Single 4K at 60Hz via any downstream Thunderbolt 4 port)

3840x2160 @ 60Hz

2 displays (Dual 4K at 60Hz on Windows and Thunderbolt 4 laptops. On Mac, dual display requires M1 Pro/Max, M2 Pro/Max, M3 Pro/Max, or M4 Pro/Max. Base M-series chips support one external display only.)

3840x2160 @ 60Hz

Ports & Connectivity

USB Ports

3x USB-C 4.0 15W

3x USB-A 3.2

1x USB-A 2.0 7.5W

Network

1x Ethernet (1 Gbps)

Audio

1x 3.5mm combo

Card Readers

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

Full Specifications

General
Manufacturer	StarTech.com
Model	TB4CDOCK
Release Date	2022-01
MSRP	$199.99
Connectivity
Host Connection	Thunderbolt 4
Max Data Rate	40 Gbps
Driver Required	No (native)
Display Output
Max Displays	2
1x Display	7680x4320 @ 30Hz (Single 8K at 30Hz via one downstream Thunderbolt 4 port using Display Stream Compression)
1x Display	3840x2160 @ 60Hz (Single 4K at 60Hz via any downstream Thunderbolt 4 port)
2x Display	3840x2160 @ 60Hz (Dual 4K at 60Hz on Windows and Thunderbolt 4 laptops. On Mac, dual display requires M1 Pro/Max, M2 Pro/Max, M3 Pro/Max, or M4 Pro/Max. Base M-series chips support one external display only.)
Ports (7+ total)
USB-C 4.0	3x (15W)
USB-A 3.2	3x
USB-A 2.0	1x (7.5W)
Ethernet (RJ45)	1x 1 Gbps
Audio (3.5mm-combo)	1x
SD Card Reader	1x
Power
Power Input	DC-barrel
Laptop Charging	Up to 96W

Compatibility

Windows (10+)

Full support on Thunderbolt 4 and USB4 laptops. Dual 4K display works natively. Optional StarTech companion software available for Windows with IT management features.

macOS (11.0 (Big Sur)+)

Compatible with Thunderbolt 3 M1 MacBooks (Big Sur 11.0+) and Thunderbolt 4 MacBooks. Dual display requires M1 Pro/Max or later. Base M1, M2, M3, M4 chips limited to one external display by Apple hardware.

Linux (Ubuntu 20.04+)

Compatible with Thunderbolt-enabled Linux systems. StarTech companion software not available on Linux.

Known Issues

Apple Silicon MacBooks with base M1, M2, M3, or M4 chip

Limited to single external display

USB-C only laptops without Thunderbolt

Reduced functionality and display support

7 /10

Our Verdict

Very Good

The StarTech TB4CDOCK sits in a strange position in the Thunderbolt 4 dock market. The specs are solid - 96W power delivery edges out the 90W common to most competitors, the three downstream TB4 ports cover dual 4K display configurations without adapters on USB-C monitors, and the SD 4.0/UHS-II reader is genuinely fast. The 3-year warranty is better than most in this category. The problem, historically, was price. At launch, this dock was listed between $415 and $484 - hard to justify when functionally similar docks like the Kensington SD5700T were available for $100 less. PCWorld testing also flagged a power delivery issue with the downstream Thunderbolt ports, which delivered about a third of their rated wattage - enough to cause problems with external SSDs that draw more power on connection. Current street prices around $199 change the calculus considerably. At that price, the TB4CDOCK is a competitive option for users who work with Thunderbolt-native or USB-C displays and do not need HDMI or DisplayPort outputs built into the dock. For anyone connecting standard monitors, budget for adapters or look at docks with dedicated video outputs. The IT tools (MAC Address Pass-Through, WiFi Auto Switching) add genuine value for enterprise deployments that most consumer-focused docks skip entirely. If your environment runs Thunderbolt hardware across the board and you need a dock with a three-year warranty and some IT management capability, the TB4CDOCK holds up well at current pricing.

Frequently Asked Questions

Does the StarTech TB4CDOCK work with Mac?

Yes. The dock works with Thunderbolt 3 MacBooks running macOS 11 Big Sur or later, and with Thunderbolt 4 MacBooks. Dual 4K display requires an M1 Pro, M1 Max, M2 Pro, M2 Max, M3 Pro, or later chip. Base M1, M2, M3, and M4 MacBooks are limited to one external display by Apple hardware design, not by the dock itself.

Does the StarTech TB4CDOCK need drivers?

No. The dock is a native Thunderbolt 4 device and works plug and play on Windows 10 and later and macOS 11 and later without any driver installation. An optional StarTech companion app for Windows adds IT management features including MAC Address Pass-Through and WiFi Auto Switching, but the dock works fully without it.

Does the TB4CDOCK have HDMI or DisplayPort?

No. The dock has no dedicated HDMI or DisplayPort outputs. All display connections go through the downstream Thunderbolt 4 ports using USB-C monitors, Thunderbolt displays, or USB-C to HDMI/DisplayPort adapters. If you need built-in HDMI or DisplayPort, look at the CalDigit TS4, the OWC Thunderbolt 4 Dock, or the Lenovo ThinkPad Thunderbolt 4 Dock instead.

What is the power delivery rating of the StarTech TB4CDOCK?

The host Thunderbolt 4 port delivers 96W to the connected laptop, which is slightly above the 90W offered by most competing Thunderbolt 4 docks. Each downstream Thunderbolt 4 port provides 15W for connected peripherals. The USB 2.0 USB-A port on the front supports BC 1.2 charging at 7.5W for phones and tablets.

How does the StarTech TB4CDOCK compare to the Kensington SD5700T?

The two docks share nearly identical port layouts - both offer three downstream Thunderbolt 4 ports, four USB-A ports, GbE, an SD card reader, and a 3.5mm audio jack. The main differences are warranty (StarTech offers 3 years versus 2 for Kensington) and the StarTech's IT management software tools. At current pricing they are close, though street prices vary. PCWorld reviewers described the TB4CDOCK as a virtual clone of the Kensington at a higher price point when both launched.