An official SDconnect C5 costs over $5,000. A used Openport 2.0? ~$150-$200. If you already have a laptop and a copy of Xentry (Developer or Passthru enabled), you just saved a fortune.
The combination of the and Mercedes-Benz Xentry Passthru is a popular choice for independent technicians and DIY enthusiasts looking to diagnose and program Mercedes vehicles without investing in the expensive proprietary "Xentry Kit" (SD Connect C4/C5/C6). Xentry Passthru Openport 2.0