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A Thunderbolt 4 dock turns a Mac Mini or mini PC into a full workstation via a single cable — delivering power, dual 4K displays, USB peripherals, and Ethernet simultaneously. For AI workflows, the key specs are Ethernet speed (2.5GbE enables faster NAS model loading vs Gigabit) and charging wattage (98W–100W for large laptops). The CalDigit TS4 is the best dock for Mac Mini M4 Pro users who want maximum ports and 2.5GbE. The Anker 777 is the best value for Windows mini PC users who need triple 4K display support at $199.
The Anker 777 is the best Thunderbolt 4 dock for Windows mini PC users — 12 ports, 90W charging, triple 4K display support, and Ethernet in a compact form factor at $199.
The CalDigit TS4 is the gold standard Thunderbolt 4 dock for Mac Mini M4 Pro and AI workstations — 18 ports including 2.5GbE, 98W charging, and support for single 8K or dual 6K displays over a single cable.
The Kensington SD5700T is a reliable hybrid Thunderbolt 4 dock supporting both Mac and Windows with dual 4K, 90W charging, and Kensington's enterprise-grade build quality at $169.
The Plugable TBT4-UD5 delivers 13 ports including 100W charging, dual 4K, 2.5GbE Ethernet, and 7 USB ports — the best TB4 dock for port density at $199.