Dell USB-C Thunderbolt Dock Station for Precision 3540 3541 Laptop – Fully Tested. Dell USB-C Thunderbolt Dock Station. USB: 3×USB-A 3.0, 2×USB-A 2.0, 1×Thunderbolt 3 (USB Type-C). USB & Power: 1×USB 3.0 data ports + USB-C power pass-through.
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