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🦉 WE READ 62 OWNER COMMENTS
CalDigit TS4 Thunderbolt Station: what owners actually say
Owners love the port selection and 2.5GbE but a persistent pattern of sleep/wake bugs and USB device dropouts plagues the TS4
What owners complain about
- Sleep/wake failures COMMON
After sleep, USB devices disappear, drives and displays drop, Ethernet reports disconnected — 9/10 times per one owner. A reboot is often required. Reported across multiple firmware versions with Apple Silicon Macs.
- Notoriously buggy firmware COMMON
Multiple owners describe the dock as buggy, even after trying replacement units. One user tried three separate TS4 units and all exhibited the same USB failures with studio gear. Owners are urged to keep up with firmware updates, but fixes are not guaranteed.
- USB device incompatibility with pro audio gear SOME
Studio equipment — SSL UF8, RME Fireface UFX III, Elektron Overhub, Akai Force — failed to work via the dock's USB ports on a 2023 MBP, even after reinstalling macOS. The problem was consistent across three hardware units.
- Runs hot SOME
Owners report the unit gets notably hot during use. A TS3 owner also flagged SD card slot heat as concerning, hoping the TS4 improved on this.
- Only 2 downstream Thunderbolt ports FEW
One owner chose the OWC Thunderbolt dock instead specifically because they needed three downstream Thunderbolt ports for a display plus two dedicated TB drives — the TS4 only offers two beyond the host connection.
What owners love
- Massive port selection
Owners enthusiastically praise the sheer number and variety of ports. One called it 'a great investment for anyone who wants a ton of ports and great speed.'
- Real 2.5GbE Ethernet
Multiple owners highlight the 2.5GbE Ethernet with a dedicated controller that works even with legacy 100 Mbps gear. One said 'alone the 2.5gbit Ethernet Adapter makes me smile.'
- Stable with Windows 11
At least one owner reports it works flawlessly with a Windows 11 PC, suggesting the bugs are concentrated on the Apple Silicon side.
- Workstation-grade architecture
Owners appreciate the pro-tier build and feature set — dedicated Ethernet controller, better audio I/O, and overall higher-end positioning compared to alternatives.
Surprising patterns
- Owners are resorting to electrical tape to cover the front LED rather than using any built-in dimming or disable feature — implying there is no software control for it.
- One owner went through three separate TS4 units trying to isolate USB failures, confirming the issue was identical across all three — pointing to a systemic design or firmware problem, not a lemon.
- Multiple owners explicitly recommend sticking with the older TS3 Plus, which they describe as rock-solid for years, suggesting the TS4 is a regression in stability for some use cases.
WHO SHOULD SKIP IT
Owners of pro audio studio gear or anyone on Apple Silicon who relies heavily on sleep/wake should steer clear — the USB dropouts and post-sleep failures are consistent across multiple units and remain unresolved for many.
Synthesised from 62 real owner comments across 2 platforms. Every point is grounded in the comments — no marketing, no AI guessing. How we do it →