Laptops & Computers
CalDigit TS4 Review: The Docking Station That Solves Every Port Problem
- Brand:
- CalDigit
- Ages:
- 13+ years
- Updated:
- 2026-08-08
The verdict
The CalDigit TS4 earns its reputation as the dock power users reach for first — the sheer port count and dual-6K display support solve real desk-setup problems that cheaper hubs can't, and the price makes sense once you've tried to replace it with three or four smaller adapters instead.
Pros
- 18 total ports on one dock, including three Thunderbolt 4 ports, eight USB ports at full 10Gb/s speed, SD and microSD card readers, and 2.5GbE Ethernet
- Can drive up to two 6K, 60Hz external displays through its Thunderbolt 4 ports, or a single 1440p display at up to 240Hz
- 98W of charging power through the host connection is enough to power most laptops without a separate charger
- Durable aluminum construction backed by a two-year warranty, reflecting genuine build quality for daily desk use
Cons
- At $399.99, it's priced well above basic USB-C hubs and even many competing Thunderbolt docks
- Full functionality requires a Thunderbolt-equipped host laptop or desktop — USB-C-only devices won't unlock every capability
- Its size and weight, while justified by the port count, make it a genuinely desk-bound accessory rather than something to carry around
This review reflects CalDigit's published specifications for the TS4 and the consistent conclusions across independent dock reviews and long-term professional user feedback, evaluated as a full desk-setup solution rather than a basic travel hub.
Solving the one-cable desk setup, properly
With 18 total ports spanning Thunderbolt 4, high-speed USB, SD and microSD card readers, 2.5GbE Ethernet, and audio, the TS4 genuinely replaces a pile of individual adapters and hubs with a single cable to your laptop. Its ability to drive two 6K displays at 60Hz, or a single 1440p display at up to 240Hz, covers both productivity and higher-refresh use cases.
The premium is real, but so is the capability gap
At $399.99, the TS4 costs multiples of a basic USB-C hub, and buyers without a Thunderbolt-equipped computer won't unlock its full display and speed capabilities. For the right setup, though, reviewers consistently note there isn't another dock offering this much simultaneous speed, connectivity, and charging power.
Who it's for
Best for professionals with a Thunderbolt-equipped laptop who want a single, permanent desk hub covering displays, storage, networking, and charging without a tangle of adapters. Skip it if your laptop only has USB-C without Thunderbolt support, or if your needs are simple enough that a basic, much cheaper hub already covers them.
Frequently asked
- How many displays can the CalDigit TS4 support?
- It can drive up to two external displays at 6K resolution and 60Hz through its Thunderbolt 4 ports, or alternatively a single display at up to 240Hz at 1440p resolution.
- Do I need a Thunderbolt laptop to use the TS4?
- You'll get the full experience — maximum display support and fastest data speeds — with a Thunderbolt 4 or Thunderbolt 3 equipped computer. USB-C-only laptops can still use many of the dock's ports but won't unlock every capability.
- Can the TS4 charge my laptop?
- Yes, it delivers up to 98W of charging power through the host Thunderbolt connection, enough for most laptops to skip carrying a separate charger.
- Is the CalDigit TS4 worth buying?
- Yes, for professionals with a Thunderbolt-equipped laptop who want a comprehensive, reliable single-cable desk setup. It's a harder sell if your computer lacks Thunderbolt support or your connectivity needs are simple enough for a cheaper basic hub.
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