Features: Maximize efficiency with this diagnostic adapter for password programmers, enabling rapid and precise data collection across models like W164/W204 to streamlines automotive repairs. Featuring a compact design with high temperature resistant plastic housing and optimized internal circuitry, it delivers stable 1Mbps data transfer for reliably programming and 95% systems coverage diagnostics. Essential for professional auto technicians and DIYer enthusiasts, this adapter simplifies password programming, systems debugging, in garages or workshops. Perform critical tasks including engine control unit coding, key programming, and vehicle systems diagnostics during routine maintenance, performances tuning. Engineered for durability in demanding environments, its advanced circuit design ensures consistent operations during extended use, eliminating the need for multiple tools. Specifications: Type: Data Acquisition Adapter Component: plastic Color: As shown in the picture For W164 W204 W221 W209 W246 W251 W166 Package Includes: 1 Set Fast Data Transmission Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.