The Xhorse CAS Plug can be used with Xhorse VVDI2 BMW and VVDI BIMTool Pro to connect to device OBDII port, used for EWS, EWS 2, 7 Series CAS1/CAS2 plug and CAS3/CAS3+ plug. By using CAS Plug, you can connect CAN LINE manually, supports 12V.