Voltz Receiver LIPO

[SiTrace]

Hi all,

Just bought a new receiver pack (pic attached).

The black receiver style plug fits into my sanwa receiver battery socket, but i'm not sure what the white plug is for.

Is it used to balancing the cells via a charger balance board or just another transmitter connector for those that have a different connection type. The instructions don't mention it?

Please excuse my ignorance!

Thanks All!