CalDigit TS4 vs TS5 - Thunderbolt 4 vs Thunderbolt 5 Dock Comparison

CalDigit TS4 vs TS5: the practical answer

The CalDigit TS4 and CalDigit TS5 are not really old dock versus new dock in the simple way the names suggest. The TS4 is CalDigit’s mature Thunderbolt 4 flagship. The TS5 is the newer Thunderbolt 5 model with more bandwidth, more charging power, and a much higher display ceiling on the right host computer.

That last phrase matters: on the right host computer. The TS5 can do things the TS4 cannot do, but the YAML makes clear that those advantages depend heavily on the laptop. CalDigit lists dual 4K 240Hz, triple 4K 144Hz, and even quad 4K 144Hz configurations for specific Thunderbolt 5 Mac and Windows systems. It also lists base M1, M2, and M3 Macs as single-display systems through Thunderbolt, and Thunderbolt 3 Windows PCs as not compatible. The TS4 is less exciting on paper, but it is also easier to recommend. It has a higher score in our product data, more total ports, broad operating system support, no driver requirement, and a longer warranty.

The short verdict: the TS4 is still the better default buy for most desks. Choose the TS5 when you have a Thunderbolt 5 host and you can actually use the extra bandwidth, 140W charging, or high-refresh display support. If your setup is dual 4K at 60Hz, Ethernet, storage, card readers, audio, and a pile of USB accessories, the TS4 remains the cleaner choice.

If you are still sorting out which standard your laptop supports, start with our USB-C vs Thunderbolt docking station guide before spending TS5 money.

Quick specs comparison

Thunderbolt generation and bandwidth

This is the headline difference. The TS4 is a Thunderbolt 4 dock with a 40 Gbps host connection. The TS5 is a Thunderbolt 5 dock with an 80 Gbps host connection. If your laptop and peripherals can use Thunderbolt 5, the TS5 has a real performance advantage. The product YAML specifically calls out fast external SSDs and high-refresh displays as the situations where Thunderbolt 5 bandwidth matters.

That does not make the TS4 slow. For many desks, 40 Gbps is still enough. A dual 4K 60Hz monitor setup, wired Ethernet, a keyboard, a mouse, audio, an SD card, and a few USB devices do not automatically require Thunderbolt 5. The TS4 was built for that kind of desk, and its 9.2 score reflects how complete it still is.

The TS5 is for a narrower buyer. It makes sense if you own a Thunderbolt 5 Mac or PC, use fast external storage, want to attach several USB-C or Thunderbolt displays, or need 140W host charging. If you are plugging the dock into an older Thunderbolt 4 machine, the TS5 loses some of the reason to exist. It may still work depending on the host, but you are buying a faster dock than your laptop can fully exploit.

Bandwidth winner: TS5. Practical default winner: TS4, unless your host and peripherals are ready for Thunderbolt 5.

Port layout and everyday usability

The TS4 has the easier port story. It has 18 total ports, including three downstream Thunderbolt 4 ports, three USB-C 3.2 ports, five USB-A 3.2 ports, one DisplayPort 1.4 output, 2.5GbE, SD and microSD card readers, and three separate audio connections. The YAML also notes that the TS4 requires no drivers and works plug and play across macOS, Windows, ChromeOS, and Linux.

The TS5 has 15 ports. It includes three downstream Thunderbolt 5 ports, three USB-C 3.2 ports, two USB-A ports, 2.5GbE, SD and microSD card readers, one combo audio jack, and a Kensington lock slot. The three downstream Thunderbolt 5 ports are the best part of the layout. They give you flexible expansion for USB-C displays, Thunderbolt displays, fast external SSDs, capture gear, and adapters.

The trade-off is that the TS5 removes some of the fixed convenience that made the TS4 so easy to live with. The TS4 has a built-in DisplayPort output. The TS5 has no HDMI and no DisplayPort. Every display connects through a downstream Thunderbolt 5 port directly or through a USB-C video adapter. The TS4 also has more USB-A, more total ports, and separate headphone and microphone jacks instead of only one combo jack.

For a desk with newer USB-C displays and Thunderbolt accessories, the TS5 layout is clean. For a desk with older USB-A gear, a DisplayPort monitor, separate audio, and several everyday accessories, the TS4 is less fussy.

Port winner: TS4 for most desks. TS5 if your desk is already built around USB-C, Thunderbolt, and adapters.

Display support

The TS5 has the better display ceiling, but it is also the more conditional dock.

The TS4 supports up to two displays. The YAML lists single 8K 30Hz on Windows, single 4K 60Hz, and dual 4K 60Hz via DisplayPort 1.4. On Mac, dual displays require an M1 Pro, M1 Max, or later chip. Base M1, M2, and M3 Macs are listed as limited to one external display because of the host computer, not because of the dock.

The TS5 supports up to four displays in the product data. The listed configurations are more ambitious: single 8K 60Hz depending on host, display, adapter, cable, and DSC support; dual 4K 240Hz on compatible macOS and Windows computers; triple 4K 144Hz on M5 Pro, M5 Max, and supported Thunderbolt 5 Windows PCs; and quad 4K 144Hz on M5 Max. Those are serious numbers, but they are not universal. The YAML repeatedly ties them to host support.

So the correct display recommendation depends on the monitor plan. If you want two normal 4K 60Hz displays, the TS4 is enough and has a simpler buying case. If you want high-refresh 4K displays, three displays, or four displays, and your host is explicitly capable of those modes, the TS5 is the better choice.

Display winner: TS5 for high-refresh and multi-display ceilings. TS4 for straightforward dual 4K 60Hz desks.

Charging power

The TS5 wins charging. The TS4 provides up to 98W USB-C Power Delivery to the host. That is enough for many laptops, including normal use on a 16-inch MacBook Pro according to the TS4 FAQ.

The TS5 raises host charging to 140W. The product YAML describes that as enough for demanding MacBook Pro and workstation laptops that support USB-C PD 3.1 EPR. This is one of the clearest TS5 upgrades because it does not require you to care about monitor refresh rates or storage benchmarks. If your laptop can accept 140W over USB-C, the TS5 can replace more of your charger setup with one cable.

Accessory charging is more mixed. The TS5 has one front USB-C port with 20W accessory charging, while its own cons call out that only one front USB-C port provides 20W. The TS4 spreads lower accessory charging across several USB-C and USB-A ports, with 15W on its Thunderbolt 4 downstream ports and 7.5W on several USB ports.

Charging winner: TS5 for host charging. TS4 remains fine if 98W covers your laptop.

Ethernet, card readers, and audio

Both docks cover the core creative desk features. Both list 2.5GbE, SD, and microSD. The TS4 card readers are listed as UHS-II at 312 MB/s. The TS5 card readers are listed as SD 4.0 / UHS-II. Both are reasonable choices for photographers and video editors who want built-in readers instead of a loose dongle.

Ethernet is a tie on paper because both YAML files list 1 Gbps and 2.5 Gbps speeds. The TS5 has one extra caveat: the compatibility section notes that Ethernet and some PCIe-based functions may not work on USB4 hosts without PCIe tunneling. That is not unusual for advanced USB4 and Thunderbolt features, but it is still another reminder that the TS5 is more host-dependent.

Audio favors the TS4. It has a 3.5mm combo jack, a headphone output, and a microphone input. The TS5 has a single 3.5mm combo jack. That may not matter if you use USB audio, Bluetooth headphones, or a monitor audio path, but the TS4 is the more complete dock for analog audio.

Feature winner: TS4 by a small but real margin. Both cover Ethernet and card readers, but the TS4 gives you more audio flexibility and fewer USB4 caveats.

Compatibility and setup risk

The TS4 is the safer compatibility pick. Its YAML lists macOS 11.0 Big Sur or later, Windows 10, ChromeOS, and Linux. It requires no drivers. Its main known incompatibility is the familiar base Apple Silicon display limit: base M1, M2, and M3 MacBook Air and Pro models are limited to one external display. That limitation is from the host, not the dock.

The TS5 also requires no driver for normal Thunderbolt, USB, display, Ethernet, audio, and charging functions. CalDigit offers a macOS utility for storage eject support and a separate SuperDrive driver, but the dock itself is not a DisplayLink-style driver product. The difference is that the TS5 compatibility section is more complicated. It lists macOS 15 or above, Windows 10, and ChromeOS. It also lists Thunderbolt 3 Windows PCs as not compatible, USB4 hosts without PCIe tunneling as potentially losing Ethernet or PCIe-based functions, and HDMI-only or DisplayPort-only monitor setups as requiring adapters.

The TS5 common issues are also more tied to early-generation Thunderbolt 5 behavior: displays may not wake cleanly after sleep on some systems, SSD performance can drop when several high-resolution displays share the dock, and Ethernet can be unavailable on some USB4 hosts. None of that makes the TS5 a bad dock. It just makes it less automatic.

Compatibility winner: TS4. The TS5 is the better forward-looking dock, but it asks you to check the host more carefully.

Warranty, price, and score

The TS4 costs $379.99 MSRP in the YAML. The TS5 costs $399.99. That $20 difference is small enough that price alone should not decide the comparison. The better question is whether your desk needs Thunderbolt 5.

The warranty difference is larger. The TS4 lists a 24-month limited warranty. The TS5 lists a 12-month limited warranty. That matters because docks are the center of the desk. They handle power, displays, Ethernet, storage, and peripherals every day. A longer warranty is not a spec-sheet thrill, but it is useful.

Our scores also favor the older dock: 9.2 for the TS4 and 8.8 for the TS5. The TS5 has the newer standard, higher charging, and much higher display ceiling. The TS4 wins on total package: more ports, mature compatibility, longer warranty, and fewer conditional promises.

Value winner: TS4. The TS5 is only the better value when you will use Thunderbolt 5 features now, not someday.

Verdict: TS4 wins for most people, TS5 wins for the right new laptop

The CalDigit TS4 wins this comparison as the better default recommendation. The YAML gives it the higher score, more total ports, broader operating system support, a longer warranty, and a simpler compatibility story. It is still the CalDigit dock I would point most MacBook Pro, Windows ultrabook, and home office users toward if they want a stable one-cable desk setup.

The CalDigit TS5 is the more advanced dock. It wins on Thunderbolt generation, bandwidth, host charging, and display ceiling. If you already have a Thunderbolt 5 Mac or Windows laptop, need 140W charging, use fast external SSDs, and want high-refresh 4K displays through USB-C or Thunderbolt, the TS5 is the more future-ready choice. Just do not buy it blindly for an older laptop and expect every headline spec to appear.

Choose the CalDigit TS4 if:

• You want the safest recommendation for a Thunderbolt 4 or Thunderbolt 3 desk
• Dual 4K 60Hz is enough for your monitor setup
• You need more total ports, more USB-A, and built-in DisplayPort
• You want separate headphone and microphone audio connections
• You value the 24-month warranty
• You want the higher-scoring dock in our product database

Choose the CalDigit TS5 if:

• You have a Thunderbolt 5 host computer
• You need 140W host charging for a demanding laptop
• You use fast Thunderbolt storage or other bandwidth-heavy accessories
• You want dual 4K 240Hz, triple 4K 144Hz, or quad 4K 144Hz on a supported host
• Your monitors can connect over USB-C or Thunderbolt, or you are fine using adapters
• You want a newer dock and accept the extra host-compatibility checks

For most readers, the TS4 is still the smarter buy. For the smaller group already building a Thunderbolt 5 desk, the TS5 is the more capable tool.

Read the full CalDigit TS4 review and CalDigit TS5 review for product-level details. If you are comparing broader dock categories, our Thunderbolt 5 docking stations guide and docking station buying guide are the next useful stops.