Korpa 
The Line 6 VARIAX DIGITAL CABLE Connects Variax To Vetta Digital Interface And PODxt Live. The only cable to use.
The Line 6 VARIAX DIGITAL CABLE gets your Line 6 gear communicating. When you plug your Variax guitar into a PODxt Live or Vetta II using the Variax Digital Input Cable, that single cable supplies power to the Variax, digitally sends audio, and allows you to automate Variax patch changes with the foot controls of PODxt Live or Vetta II's FBV foot controller. Now you can seamlessly integrate a Variax's collection of acoustic and electric guitar models with the ultimate collection of amps, cabs, and effects. This entire setup can be instantly transformed into virtually any rig with just the press of a single footswitch.
Connect your Variax To a Vetta II Digital Interface or PODxt Live or BASS POD xt Live
The only compatible cable to use