CAS Plug for VVDI2 BMW or Full Version (Add Key Maker For BMW EWS) By using the CAS Plug, you can connect the CAN LINE manually, it supports 12V. The new CAS Plug works together with VVDI 2 to support more BMW cars 1. It connects to the OBDII port of the vehicle, 2. It is used for EWS, EWS 2, 7 Series CAS1/CAS2 plugs and CAS3/CAS3+ plugs. 3. By using the CAS Plug, you can connect the CAN LINE manually, it supports 12V. Note: It does not work with the BMW Multi Tool.