The CalDigit TS4 is a Thunderbolt 4 dock featuring 18 ports including Thunderbolt 4 downstream, USB-A, DisplayPort, 2.5 Gigabit Ethernet, SD card reader, and audio I/O, supporting up to 98W host charging. It is one of the most comprehensive Thunderbolt 4 docks available for Mac and PC. Thunderbolt and USB PD firmware are maintained in separate update packages.
Product released: January 4, 2022
Latest firmware version
Version 45.1, released January 27, 2026
What's new in version 45.1
If your computer is running a previous version of macOS, such as macOS 11 or 12, please update to 13.1 or above. If your computer is a Windows base Thunderbolt 3/4/5 computer, please use this Windows updater.Firmware v.45.1 is to improve downstream USB4 and Thunderbolt