Which one to buy

Here's the Swedish VCDS importer product page:

http://www.vcds.se/produkter

I'm no dealer nor am I buying it for providing services for a profit. If I happen to be able to help others fine but my priority is having access to ALL functionalities of a MY2017 VW car first. Then if other older models are supported great but not at an extra cost.

So I'm guessing it's either HEX-USB, Micro-CAN or the most expensive Al-USB+CAN but what are the differences and which ones will fit my purpose with the minimum cost?