Required Parts:
1x  4-14S HYB-BEC / 5.3V-3A / DF13-4p

1x Sensor Hub X2

2x  HS-050-HV or 2x HS-100-HV or 2x HS-200-HV Sensor Board

1x Adapter Cable for Pixhawk 2

Optional Parts:

1x Enclosure for Sensor Hub X2 -> Highly recommended as shrinking tube is not possible here to protect the board

2x HS-xxx-xx CFK Enclosure -> To protect the Sensor Board

1x 4-14s Backup BEC for Pixhawk 2