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
Last checked for updates: Jul 10, 2026 04:37 UTC
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
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. It was originally released on January 4, 2022.
What is the latest firmware version of CalDigit TS4 Thunderbolt?
The latest firmware version of CalDigit TS4 Thunderbolt is 45.1. It was released on January 27, 2026.
What changed in CalDigit TS4 Thunderbolt firmware version 45.1?
CalDigit TS4 Thunderbolt firmware version 45.1 includes the following changes: 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
How do I update the CalDigit TS4 Thunderbolt firmware?
To update the CalDigit TS4 Thunderbolt firmware, download the latest version (45.1) from CalDigit's website. Follow CalDigit's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from CalDigit's support page.
Where can I download the latest CalDigit TS4 Thunderbolt firmware?
Details and download instructions for the latest CalDigit TS4 Thunderbolt firmware (version 45.1) are on CalDigit's official release page: https://www.caldigit.com/ts4-macos-firmware-update-procedures/
How do I check for CalDigit TS4 Thunderbolt firmware updates?
You can track CalDigit TS4 Thunderbolt firmware updates automatically on LatestUpdate.io. We monitor CalDigit's releases and notify you when new firmware versions are available, so you never miss an update.
Is CalDigit TS4 Thunderbolt still receiving firmware updates?
Yes, CalDigit TS4 Thunderbolt received a firmware update within the last year. The most recent version is 45.1.
Who makes CalDigit TS4 Thunderbolt?
CalDigit TS4 Thunderbolt is manufactured by CalDigit. Visit the official product page for more information.