The product is a genuine Volkswagen Passat Audi ECU 1.8t computer module, specifically the 4B0 906 018 CM Turbo Computer VW. It is a direct replacement engine control unit (ECU) manufactured in Germany by Bosch. This part is tested for quality and is a used OEM part with the surface finish labeled as "Used OEM Tested Part." It is not a non-domestic product, modified item, or vintage part, making it a reliable choice for those in need of a replacement ECU for their vehicle.