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CalDigit TS4, 18-in-1 Thunderbolt 4 Docking Station, 98W Charging, 3* TBT4 (40Gb/s), 3* USB-C + 5* USB-A (10Gb/s), 2.5GbE LAN, 1*8K@30Hz or 2*6K@60Hz Displays, Mac/Windows/Chrome, 0.8m Certified Cable
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AI Verdict
This 18-port Thunderbolt 4 dock delivers 98W charging and 40Gb/s data, ideal for power users needing extensive connectivity for dual 6K displays and 2.5GbE.
This dock is a strong fit for users with high-performance laptops and extensive peripheral needs, offering 18 ports, 98W charging, and 2.5GbE. Its ability to drive dual 6K displays for many systems and provide 40Gb/s Thunderbolt 4 connectivity makes it suitable for demanding creative or professional environments.
If you only need basic USB-C connectivity and single 4K display support, look for docks with lower power delivery and fewer high-speed ports to save on cost.
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Pros
- Features 18 ports, including 3x Thunderbolt 4 (40Gb/s), 8x USB (10Gb/s), DisplayPort 1.4, 2.5GbE, and SD/microSD 4.0 UHS-II card readers.
- Provides up to 98W power delivery to host laptops, sufficient for larger screen models.
- Supports single 8K@30Hz or dual 6K@60Hz displays for Windows, and dual 6K@60Hz for M1-M4 Pro/Max/Ultra Macs.
- Includes a 2.5 Gigabit Ethernet port, offering 2.5 times faster network speeds than standard 1GbE.
- Universally compatible with Thunderbolt 4, Thunderbolt 3, USB4, and USB-C host devices across Mac, Windows, and Chrome OS.
Cons
- M1-M3 (Non Pro) Macs are limited to a single external display due to host hardware limitations.
- Requires a separate 230W external power supply brick, which adds to desk clutter.
- The front power/connected indicator light is bright and cannot be turned off, potentially distracting in dark environments.
- USB-C and USB-A ports are exclusively for data transfer; monitors must connect to Thunderbolt 4/USB4 ports or DisplayPort.
- Some users reported initial compatibility issues that required firmware updates for resolution.
Dimension Scores
The dock itself is compact at 1.41 pounds, but the required external 230W power brick can be cumbersome for desk organization.
As a static docking station, physical adjustability is not a primary feature, though it includes rubber feet strips for stable placement.
It features an aluminum enclosure engineered for durability and efficient heat dissipation, maintaining stable performance under heavy workloads.
Its minimalist design with an aluminum enclosure is functional, though the bright, non-dimmable front LED can be distracting in dark environments.
Best For
- Professionals with demanding workflows requiring extensive peripheral connectivity and high-speed data transfer.
- Users needing single 8K@30Hz or dual 6K@60Hz display setups on Windows, or dual 6K@60Hz on M1-M4 Pro/Max/Ultra Macs.
- Video editors and media professionals transferring large 4K/8K files and needing fast external storage.
- Anyone seeking a single-cable solution for charging and connecting multiple devices to a Thunderbolt 4 or USB4 laptop.
Not Recommended For
- Users with M1-M3 (Non Pro) Macs who require more than one external display.
- Individuals prioritizing a minimalist setup without an external power brick.
- Buyers on a strict budget, given its position in the upper-mid price band.
Watch Out For
- M1-M3 (Non Pro) Mac users are restricted to a single external display, not dual displays, despite the dock's capabilities.
- The power indicator light on the front is bright and cannot be turned off, requiring users to cover it in dark environments.
- Initial releases had compatibility issues, with CalDigit initially attributing problems to laptops before fixing them via firmware.
- The dock requires a large 230W external power supply, which needs dedicated desk space and management.
- USB-C and USB-A ports on the dock are exclusively for data, meaning monitors cannot be connected to them.
Full Specifications
| ASIN | B09GK8LBWS |
| Brand | CalDigit |
| Color | Space Gray |
| Wattage | 98 watts |
| Item Weight | 1.41 pounds |
| Manufacturer | CalDigit Inc. |
| Number of Ports | 18 |
| Total USB Ports | 8 |
| Item model number | TS4-US 500971 |
| Compatible Devices | Dell Latitude 7370, MacBook Air, MacBook Pro |
| Hardware Interface | Thunderbolt 4 |
| Product Dimensions | 4.46 x 1.65 x 5.55 inches |
What Buyers Say
Many users report a transformative 'one-cable life' experience, consolidating numerous peripherals and displays through a single connection to their laptop. While online reviews are overwhelmingly positive, some Amazon reviews highlight initial compatibility issues that CalDigit addressed with firmware updates. The dock's ability to handle demanding tasks like 4K/8K video editing and large file transfers without bottlenecking is frequently mentioned. However, the bright, non-dimmable front LED and the need for a separate power brick are recurring minor annoyances.
“Dude, this thing finally cleaned up my desk, but seriously, that little blue light on the front is like a laser beam in my dark office, had to tape over it, but my MacBook Pro is finally running everything off one cable and charging, so I guess it's worth it.”
Common Praise
- Consolidates all peripherals and displays to a laptop with a single Thunderbolt 4 cable.
- Maintains 40Gb/s speeds for external SSDs and 4K video transfers without bottlenecks.
- Provides 98W power delivery, keeping power-hungry laptops charged during intensive use.
- Aluminum enclosure contributes to durability and efficient heat dissipation.
- Responsive customer support from CalDigit when issues arise.
- Offers extensive port selection, including 8 USB ports, 2.5GbE, and SD/microSD readers.
Common Complaints
- The front power indicator light is too bright and cannot be turned off.
- Requires a large external power supply brick that needs to be hidden.
- M1-M3 (Non Pro) Mac users are limited to a single external display.
- Early versions had compatibility issues that required firmware updates.
- USB-C and USB-A ports are data-only, not for display output.
Ownership Tips
- The dock runs warm but not hot, even under heavy load, due to its aluminum construction.
- The included 0.8m Thunderbolt 4 cable is certified and crucial for performance; using non-certified cables can lead to issues.
- A macOS utility is available for one-click disconnection of all external drives.
- Finding a spot for the large power brick is a common challenge for desk organization.
- Firmware updates are sometimes necessary for optimal compatibility, especially with new OS versions or hardware.
Frequently Asked Questions
Can I connect two monitors to this dock with my M1 MacBook Air?
No, M1-M3 (Non Pro) Macs are limited to a single external display when connected to this dock due to host hardware limitations.
Does this dock charge my laptop?
Yes, it provides up to 98W of power delivery to your Thunderbolt or USB-C host device, charging it while connected.
What kind of Ethernet speed does it offer?
The dock features a 2.5 Gigabit Ethernet port, which is 2.5 times faster than standard 1GbE connections.
Is it compatible with older Thunderbolt 3 laptops?
Yes, the TS4 is universally compatible with Thunderbolt 3, Thunderbolt 4, USB4, and USB-C computers, though performance may be capped by the host interface.
Can I connect a monitor to one of the USB-C ports?
No, the USB-C and USB-A ports on the TS4 are for data only; monitors must be connected to the dedicated DisplayPort 1.4 or the spare Thunderbolt 4/USB4 ports.
Does it come with the necessary cables?
Yes, it includes a 0.8m certified Thunderbolt 4 cable, a power cord, and a 230W power supply.
Buying Guide
When you're looking at a Thunderbolt dock like this, you're essentially buying a central hub for your entire desk. You want to make sure it has enough ports for all your current and future devices, from external drives to monitors and network cables. Pay close attention to the power delivery, as it needs to match or exceed what your laptop requires to charge properly.
98W Charging
This tells you how much power the dock can send to your laptop. If your laptop needs 100W to charge, 98W is close enough to keep it powered even under heavy use, preventing battery drain. Think of it like a fast charger for your laptop, but also powering everything else.
3* TBT4 (40Gb/s)
Thunderbolt 4 ports are your high-speed lanes. 40 Gigabits per second is incredibly fast, allowing you to connect multiple high-resolution monitors, external SSDs, and other demanding peripherals without slowdowns. It's like having a super-wide highway for all your data.
2.5GbE LAN
This is your internet connection speed through the dock. 2.5 Gigabit Ethernet is 2.5 times faster than the standard Gigabit Ethernet found on many older docks and computers. If you have a fast internet connection or a network-attached storage (NAS) device, this means quicker downloads and faster file transfers.
Single 8K@30Hz or Dual 6K@60Hz Displays
This indicates the maximum resolution and refresh rate for external monitors. For Windows users, you can run one super-sharp 8K monitor or two 6K monitors at a smooth 60Hz. For specific Macs, you can also get dual 6K@60Hz. This is crucial if you're a designer, video editor, or just want a lot of screen real estate.
Alternatives
If this dock is overkill, look for models with fewer high-speed Thunderbolt ports, lower power delivery (e.g., 60W), and standard 1GbE, which will likely reduce the cost and complexity. If you need more display flexibility for M1-M3 (Non Pro) Macs, consider docks that leverage DisplayLink technology.



