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How to connect dual, up to 4K monitors at up to 4096 x 2160, 30-bit colour at 60Hz

(Tested with LG 34UC98 and an HP Z34c – both 21:9, 3440 x 1440 panels with DisplayPort 1.2 and HDMI 2.0)

The first monitor connects to the DisplayPort. The second uses a USB-C/Thunderbolt cable (note it must be active if you want to run it over .5m) to a Thunderbolt 3 monitor or an adaptor (USB-C to HDMI/VGA/DVI etc.).


Ethernet was a rock solid 1Gb/s.

It was difficult to test the 40Gb/s (5,000 MB/s) Thunderbolt 3 claim. Attaching a Samsung T3 1TB drive gave an amazing and consistent write speed of 400MB/s (the theoretical maximum rate is 450MB/s), so all I can surmise is that the port is very fast.

Interestingly the T3 also achieved that speed on the USB-A port proving its 5GB/s capacity.

GadgetGuy’s take

I like Kensington Docks – I have tested many over the years, and they all work flawlessly.

I have been testing various docks on both Mac and Windows, and this is the only one so far that we can unreservedly recommend as “Best for Windows”.


  • Worked flawlessly with a Windows 10 laptop (many docks do not)
  • Provides 85W power upstream
  • Well built
  • Kensington Lock slot


  • Very large power brick weight as much as the dock
  • Short .5m USB-C/Thunderbolt 3 cable provided (you need an active 1m cable)
  • Would have liked an HDMI port as well but realise the Thunderbolt 3 standard does not support this


As a Windows 10 dock – the OWC has more ports and Apple specific flexibility

  • Overall: 4.8 out of 5
  • Features: 4 out of 5 –  it has all you need, but I would have liked tow more USB-A
  • Value for money: 5 out of 5 – about the same cost as other docks
  • Performance: 5 out of 5 – in all tests it met specifications
  • Ease of Use: 4 out of 5 – if it has an HDMI port as well it would be perfect
  • Design: 5 out of 5 –  Matt black and brushed aluminium



Kensington Thunderbolt 3 dock is best for Windows (review)
Price (RRP): $579.95 Manufacturer: Kensington
Best for Windows, great for Mac too
None really
Value for money
Ease of Use
4.7Overall Score
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