18-port Thunderbolt 4 dock with 40Gb/s bandwidth, dual 4K60/8K display support, 98W charging, 2.5GbE, SD/microSD UHS-II, and USB-C/A 10Gb/s for decluttering USB4 and Thunderbolt workstations.

Another year in and the TS4 is still the anchor of my desk setup. A single Thunderbolt 4 cable from my main laptop continues to drive dual 4K60 displays, dual 10Gb/s NVMe enclosures, 2.5GbE backhaul, and balanced audio gear without flinching, and the 98W host charging keeps pace during long compile or render sessions. I swapped in a USB4 workstation and a compact Linux mini PC this summer; both negotiated full bandwidth, hot-swapped cleanly, and exposed every downstream port with zero driver drama. The front USB-C and USB-A 10Gb/s ports remain my go-to for camera card dumps, and the UHS-II SD/microSD slots are still among the fastest built into any dock I’ve tried. It does run warm—surface temps hover in the mid 40s °C under load—but the aluminum chassis sheds heat silently and the link has yet to drop. The sticker price is still steep, yet consolidating 18 ports, power delivery, and network I/O into one brick has eliminated an entire hub stack on my desk, which keeps it firmly in my must-have kit for 2025.

18-port Thunderbolt 4 dock consolidates your workstation into one cable. Powers laptop, drives dual 4K displays, and includes 2.5GbE plus 10Gb/s USB ports.

CalDigit TS4 Thunderbolt 4 Dock 18-Port with 98W PD

CalDigit TS4 Thunderbolt 4 Dock

Hand-picked caldigit ts4 tools and resources we actually use in production. Each item tested by developers, for developers.

CalDigit TS4 Products

CalDigit TS4 Thunderbolt 4 Dock