thats the one, thats only the PC focus part though.
this is the actual motofocus that it plugs into:
https://www.bintelshop.com.au/Product.aspx?ID=7677
the motofocus works fine by itself, you dont really need the pc focus part.
the hand controller only has a short cable though but can easily be replaced with whatever length you like with about $5 of stuff from DSE.
i just got the PC focus part since im trying to make sure i can operate everything remotely.