Originally Posted by PowerBox-Systems GmbH

Just to clarify that:

For sure: you can use PowerBox SRS + Cortex or iGyro3e. But if you have to match 2 servos - for example if you have 2 servos in one aileron - itīs not possible as the gyros have only one output for each function. Then you need a system which has the gyro between receiver and PowerBox. To do that with a SRS System you need a Gyro with S-BUS IN and S-BUS OUT.

Or you use a non SRS PowerBox with Cortec or iGyro3e between receiver and PowerBox. This setup has two disadvantages: You cannot make a redundant dual receiver setup and you miss the pulse amplification of the PowerBox. If you donīt need this features - no problem!