The Bosch Mastertech II J2534 VCI (Vehicle Communication Interface) is a diagnostic tool designed for automotive technicians. It supports the J2534 protocol, allowing users to reprogram ECUs (Engine Control Units) and perform diagnostics on various vehicle systems. Driver can be downloaded on the Bosch Automotive website: https://www.boschdiagnostics.com/products/mastertech-ii-j2534-vci or there is a direct link to the driver below.