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Kensington LD5400T Thunderbolt 3 Dock with K-Fob smart lock
4.4Overall Score
Name: Kensington LD5400T Thunderbolt 3 dock with K0Fob
Price (RRP): $US449.99
Manufacturer: Kensington

Kensington LD5400T Thunderbolt 3 Dock with K-Fob smart lock uses Kensington’s proven Thunderbolt 3 technology and throws in physical security especially useful for hot-deskers.

The Kensington LD5400T Thunderbolt 3 Dock with K-Fob smart lock is a slightly different dock. It is made for ultra-books and laptops and incorporates two security features that would be useful for hot desking

  • First, is the Kensington lock cable that ties the dock to the desk. It also has a Kensington Slot as well.
  • Second is the fob operated retractable arms (claws) that secure the ultra-book or laptop in place while you are using it.

Add to that a 170W charger brick (85W power delivery), 5K video support and a range of USB-A ports, and it is a hot desking winner.


Thunderbolt 3

More Windows laptops, MacBooks and monitors support Thunderbolt 3 (or USB-C Gen 3.1) for expansion and charging. Intel has given Thunderbolt 3 to the world for free – it is now the communication standard moving forward.

Simply put a single Thunderbolt 3 passive cable (a .5m USB-C to USB-C cable) can transmit data up to 40Gbps (that is 5000MBps). It can also transmit up to 5K DisplayPort over USB-C (or convert to HDMI), upstream (charging the laptop) and downstream (power devices like portable hard disks) via USB-A 3.0 gen 3.1.

This dock is not compatible with standard USB-C docks that support 5Gbps (625MBps).

Kensington’s SD5200DT Thunderbolt 3 dock (review here)  was awarded GadgetGuy’s ‘Best for Windows’. It’s great for Mac too, but the OWC Dock (review here) took that gong due to it having a legacy FireWire 800 port (used for older Macs).

All that aside we got to know what makes a great dock and what does not. And Kensington makes a great dock both in design and quality.

We assume that the Thunderbolt performance of the LD5400T dock is the same as the SD5200T. We could not find any performance differences to that.

Review: Kensington LD5400T Thunderbolt 3 dock with K-Fob smart lock

Website here

  • Dock
  • 20V/8.5A (170W) power brick and three cables for AU, EU and UK outlets.
  • .5m USB-C/Thunderbolt cable (note that 40Gb/s is the maximum speed on a .5M passive cable)
  • 2 K-Fobs
  • Kensington Lock cable
  • Base documentation

First impression

Heavy (1.5kg), solid, silver, well-made but what are the two K-Fobs for?

The best way to describe it is a typical dock at the back with a front rest for an 11-15-inch notebook and arms either side to secure it. Try as I may these would not open these manually. Ah, perhaps that what the K-Fobs are for. Voila, the arms magically opened.

The idea is that hot deskers can have their own K-Fob to access an empty dock or sysadmins can securely lock the notebooks down. Either way, you register the K-Fob number for free cloud-based key fob management and replacement.

Apart from the Kensington lock cable, you can screw the dock to a desk.


The brick provides 20V/8.5W or 170W to the dock.