The CalDigit TS4, or Thunderbolt Station 4, is a full-size Thunderbolt 4 desk dock for demanding Mac and Windows setups built around a single host cable. It offers 18 ports, including three Thunderbolt 4 ports, eight USB ports at 10Gbps, DisplayPort 1.4, SD and microSD UHS-II readers, audio connections, and 2.5 Gigabit Ethernet. Host charging reaches 98W, and display support extends to a single 8K screen or dual 6K at 60Hz on compatible systems. It fits permanent workstations with many peripherals, fast storage, and wired networking.
Key specs
| Ports | 18 ports total |
|---|---|
| Thunderbolt 4 | 3× Thunderbolt 4 (40 Gb/s) |
| USB-C | 3× USB-C (10 Gb/s) |
| USB-A | 5× USB-A (10 Gb/s) |
| DisplayPort | 1× DisplayPort 1.4 |
| Host charging | Up to 98W (230W PSU included) |
| Displays | Single up to 8K (compatible Windows; up to 6K on Mac) or dual 6K@60Hz on Apple M1 Pro/Max; original M1 limited to one external display |
| Ethernet | 2.5 Gigabit Ethernet |
| Card readers | SD 4.0 UHS-II and microSD 4.0 UHS-II readers |
| Audio | Front combo audio, rear audio in/out |
Pros
- 18 ports including 3× Thunderbolt 4
- 98W host charging (230W PSU included)
- Single 8K or dual 6K@60Hz display support
- 2.5 Gigabit Ethernet
- SD and microSD UHS-II readers
Cons
- No built-in HDMI (video is DisplayPort / Thunderbolt)
- No Thunderbolt 5 bandwidth
- Full-size desk dock (not a travel hub)
Best for: A permanent, peripheral-heavy Thunderbolt desk needing 2.5GbE, UHS-II cards, lots of 10Gbps USB and 98W charging.
Skip if: You need built-in HDMI (there is none — video is DisplayPort / Thunderbolt), Thunderbolt 5 bandwidth, or a travel hub.