The EX-NEXT is equipped with "XT" that is progressed more from "FHSS" in combination with the KR-420XT. You can choose RF mode from XT advanced mode which is fastest response in the world by one way communications and 'XT telemetry mode' which is supported telemetry(two ways communications).

 

 You can feel most fastest response by EX-NEXT and KR-420XT.

*The telemetry function can only use with our serial compatible products and receiver's power voltage.

 

 Port on the KR-420XT

 

The figure below shows the port of KR-420XT.　There are total 5 port. Most right side port is B/S port. In case of using serial mode compatible servo, connect to this port. 1-4ch are same function as conventional KR-418FH and KR-415FHD.You can use conventional servos.

Equipped with a terminal compatible with serial communication​.KR-420XT is supported  'REAL TIME ICS" that is new serial communication to servos. It became to change setting data of servos by wire-less from transmitter in your hand. You can use  "REAL TIME ICS"  with connect to B/S port from BSx4-one10 Grasper2  that is supported serial communication.

 

There is only one B / S port, but you can connect two or more devices by change the device ID number and  using a branch cable. So, You can use "REAL TIME ICS" in the GP car or else category too.