Hi guys,
just registered here to give you a full solution to your problem..
Tested on Windows 10, which gives you "unsupported" message before you even start installing files.
Step 1
Download 5.5 software or use the one from Kensington Dock
http://accoblobstorageus.blob.core.w...c38c3fdef5.zip
Step 2
Download Universal Extractor and use it to extract files from 5.5 installer (Setup.exe) (use 'other than InstallShield' to unpack). It will create a few folders in which you will find files we need later.
http://legroom.net/software/uniextract
Step 3
Find unpacked folder DPINST64 or DPINST32, depending on which system you use (64 or 32 bit). Copy DpInst.exe to each of these folders: MCCI, NIVO, SMSC and run DpInst.exe in each folder. You should see all of the drivers being installed (video, network, etc).
Now you should be ready to go, try connecting your Kensington SD400V dock.
You may also try installing newest displayport 7.9 drivers (I have installed them first)
http://www.displaylink.com/downloads/downloads.php