With the part number A4515405905 it corresponds to the most advanced revision available for the smart ED3 (BR 451) and is compatible with the older article numbers.
The electrical wiring harness comes from a European crashed smart ED3, which was built in 2015 and drove approx. 80,000 km.
The electrical wiring harness is explicitly sold as a functional used part, it is not a new part. This is a high-voltage component; if it is installed by persons without a high-voltage certificate, it is not possible to take back the used part. The installation must be carried out by qualified personnel, otherwise there is danger to life and limb.