What it is
This is a USB diagnostic interface and software license bundle from Ross-Tech, for VW/Audi Group vehicles. It's the successor to Ross-Tech's older KII, MicroCAN, and HEX-CAN interfaces. The purchase includes both the physical USB interface hardware and a full VCDS software license, no separate software purchase is needed.
VIN limit, key licensing fact
This license is locked to 3 vehicles, tracked by VIN. It is not a floating license usable across unlimited cars, once 3 VINs are registered to it, a 4th vehicle isn't covered under this license.
Vehicle coverage
VAG Group (VW/Audi/Porsche) models from 1995 through current model year, including recent years like 2016/2017.
What's explicitly NOT compatible
VW Routan and VW Crafter are excluded, this interface does not work with those two models regardless of year.
System requirements, read before buying
Hardware improvements over prior Ross-Tech interfaces
Support
Software download
Software must be downloaded separately from Ross-Tech's site (ross-tech.com/vcds/download), it is not shipped on physical media with the interface.
Fitment
VW and Audi Group vehicles, 1995-current, excluding Routan and Crafter.
Common questions
Can I use this on more than 3 cars? No, the license is tied to 3 specific VINs. A 4th vehicle isn't covered without a separate/upgraded license.
Will this work on my Mac? No, not even running Windows through a virtual machine. It requires a native Windows 7-10 installation.
Does this work on a VW Routan or Crafter? No, both are explicitly excluded from compatibility.
Do I need to buy VCDS software separately? No, the interface hardware acts as the license key for the VCDS software, which you download for free from Ross-Tech; no additional software purchase is required.
Is this a rebadged version of Ross-Tech's older interfaces? It's the direct replacement for their KII, MicroCAN, and HEX-CAN interfaces, with updated electronics and a new microcontroller.