So, picked up my 2011 DSG Golf GTI last week and it's been putting a smile on my dial ever since.
It's white, I hear they're known as Fridges round here?

Anyway, I'm digressing.
When I got home I discovered a Ross Tech VCDS dongle plugged into a port by my bonnet release.
My question is, is this useful and WTF can I do with it. The Ross Tech website is ...antiquated.
Looking at it, I can't use it unless I have a Windows laptop which is me out (Macbook), but I'm wondering if I can still use it for something.
If not, for sale?

Thanks in advance